dibasic reference
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(dibasic · DailyMed)
Registered Tanzania · TMDA

SITALIN-100

Anhydrous Dibasic Calcium Phosphate 90.00 mg/tablet,Croscarmellose Sodium 11.25 mg/tablet,Crosscarmellose Sodium 11.25 mg/tablet,DRCOAT HSP (CP/023/183) 12.30 mg/tablet,Magnesium Stearate 6.000 mg/tablet,Microcrystalline Cellulose (Plain) 137.9 mg/tablet,Povidone (PVPK-30) 17.50 mg/tablet,Purified Water Q.S ml,Sodium Stearyl Fumarate 12.00 mg/tablet,sitagliptin phosphate monohydrate equivalent to sitagliptin 100 mg

TAN 26 HM 0307 Film Coated Tablet blood and blood forming organs INN generic

What it does

Cellulose is a type of fiber that helps with digestion and promotes bowel health.

Commonly used for: constipation, irregular bowel movements

Read more in plain English ↓

Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.

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Answers come only from this medicine's registration record, BNF monograph and interaction data - not medical advice.

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Sourcing - Kenya only

Registration & product details

Registration no.
TAN 26 HM 0307
Registration date
2026-06-26
Expiry date
2031-06-25
Status
Registered/Compliant
Active ingredient
Anhydrous Dibasic Calcium Phosphate 90.00 mg/tablet,Croscarmellose Sodium 11.25 mg/tablet,Crosscarmellose Sodium 11.25 mg/tablet,DRCOAT HSP (CP/023/183) 12.30 mg/tablet,Magnesium Stearate 6.000 mg/tablet,Microcrystalline Cellulose (Plain) 137.9 mg/tablet,Povidone (PVPK-30) 17.50 mg/tablet,Purified Water Q.S ml,Sodium Stearyl Fumarate 12.00 mg/tablet,sitagliptin phosphate monohydrate equivalent to sitagliptin 100 mg
Dosage form
Film Coated Tablet
Strength
-
Pack size
-
Therapeutic class
-
ATC class (WHO)
B02BC - Local hemostatics
RxNorm RxCUI
2221
Manufacturer / MAH
Lincoln Pharmaceuticals
Country of origin
INDIA
Manufacturer location
Lincoln House, B/h, Satyam Complex, Science City Rd, Sola, Ahmedabad, Gujarat 380060, India

Source: Tanzania Medicines and Medical Devices Authority · fetched 2026-07-02 03:13:38 · updated 2026-09-14 03:00:45

Drug Interactions

1
Check interactions

Pharmacodynamic Warnings

Sitagliptin appears in TABLE 14: Antidiabetic drugs

Moderate (1)

Sitagliptin - increases exposure

Vemurafenib is predicted to increase the exposure to sitagliptin. Use with caution or avoid. Theoretical Diphenoxylate → see opioids Dipipanone → see opioids Dipyridamole → see TABLE 8 p. 1518 (hypote

Moderate Theoretical

Data from BNF 85 (British National Formulary). This is not a substitute for professional medical advice. Matched via: exact

Disclaimer: This information is sourced from Tanzania Medicines and Medical Devices Authority (Tanzania). Always consult a qualified healthcare professional before using any medication.

About cellulose

Cellulose is a type of fiber that helps with digestion and promotes bowel health.

What it treats

  • constipation
  • irregular bowel movements

How it works

Cellulose adds bulk to the stool, making it easier to pass through the intestines.

Who it's for

Suitable for people looking to improve their digestive health.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About croscarmellose

Croscarmellose is a substance used in medicines to help them dissolve and be absorbed in the body.

What it treats

  • helps improve the effectiveness of oral medications

How it works

It works by breaking down the medicine so that it can be easily absorbed in the stomach and intestines.

Who it's for

It is used in various oral medicines that require better absorption.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About crosscarmellose

Crosscarmellose is a substance used to help medications dissolve properly in the body.

What it treats

  • helps medications work better
  • improves absorption of oral medications

How it works

It acts as a disintegrant, breaking down tablets and capsules so the body can absorb the medicine more effectively.

Who it's for

It is used in various medications for adults and children who need assistance in absorbing medicine.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About dibasic

Dibasic is a medication used to treat certain health conditions. It helps to balance body chemistry and support overall health.

What it treats

  • metabolic disorders
  • acid-base imbalances

How it works

Dibasic works by helping to maintain the right balance of acids and bases in the body, which is important for normal bodily functions.

Who it's for

This medication is suitable for individuals dealing with specific metabolic issues or imbalances.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About drcoat

Drcoat is a medication that may be used to treat various health conditions.

How it works

The exact way drcoat works is not specified, but it is designed to help manage certain health issues.

Who it's for

Drcoat may be prescribed for individuals with specific medical conditions as determined by a healthcare provider.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About hsp

HSP is a medication used to treat various health conditions. It is important to follow your healthcare provider's instructions when using it.

How it works

HSP works by targeting specific pathways in the body to help manage health issues.

Who it's for

HSP is suitable for individuals who have been prescribed this medication by their healthcare provider.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About microcrystalline

Microcrystalline is a type of substance often used in medicines to help with various health issues. It is commonly used as a filler or binder in tablets and capsules.

What it treats

  • stomach issues
  • constipation
  • weight management

How it works

It helps to improve the texture of medicines and can assist in the absorption of other ingredients in the body.

Who it's for

Adults and children who need help with specific health conditions, as directed by a healthcare professional.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About povidone

Povidone is a synthetic polymer often used as a disinfectant and to help deliver medications in various forms.

What it treats

  • skin infections
  • wound care
  • eye infections (conjunctivitis)

How it works

Povidone works by killing bacteria and other germs, helping to prevent infections.

Who it's for

Povidone is suitable for people needing treatment for skin or eye infections.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About purified

Purified ingredients are often used in various medicines to ensure safety and effectiveness by removing impurities.

What it treats

  • various medical conditions

How it works

Purified ingredients help in delivering the intended effects of the medicine without the risk of contaminants.

Who it's for

People who need medications with safe and effective ingredients.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About sitagliptin

Sitagliptin is a medication used to help control blood sugar levels in adults with type 2 diabetes.

What it treats

  • type 2 diabetes (diabetes mellitus)

How it works

It helps to increase insulin production and decrease sugar production in the liver, which helps lower blood sugar levels.

Who it's for

This medicine is for adults with type 2 diabetes who need help managing their blood sugar.

Cautions

  • • Should be used carefully with other diabetes medications.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

About stearyl

Stearyl is a compound used in various formulations for its properties.

What it treats

  • skin conditions
  • moisturizing products

How it works

Stearyl helps to soften and smooth the skin, making it effective in moisturizing and protecting the skin barrier.

Who it's for

This ingredient is suitable for individuals looking for skin care solutions.

AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.

Clinical monograph: cellulose

Cellulose is a complex carbohydrate and a key structural component of the plant cell wall. It is an indigestible polysaccharide made up of linear chains of glucose molecules linked by β-1,4-glycosidic bonds. As a dietary fiber, cellulose contributes to digestive health by promoting bowel regularity and is commonly used as a laxative and bulking agent in various food products and pharmaceuticals.

Indications

  • Constipation
  • Dietary fiber supplementation
  • Irritable bowel syndrome
  • Diverticular disease
  • Weight management

Dosage

Children: Refer to appropriate guidelines for specific dosage; generally taken with adequate fluid intake.

Adults: Refer to appropriate guidelines for specific dosage; generally taken with adequate fluid intake.

Mechanism of action

Cellulose acts primarily as a bulk-forming laxative. It absorbs water in the intestines, which increases stool bulk and stimulates peristalsis, thus facilitating bowel movements. Additionally, cellulose is not digestible by human enzymes, leading to fermentation by gut bacteria, which may enhance gut health and alter gut microbiota composition.

Pharmacodynamics

Cellulose increases stool weight and frequency of bowel movements. It works by retaining water in the intestines, leading to softer stools and improved passage through the gastrointestinal tract. The bulking effect of cellulose can help alleviate constipation and promote overall digestive health. It may also play a role in cholesterol reduction and glycemic control through its effects on digestion and absorption of nutrients.

Pharmacokinetics

Cellulose is not absorbed into the bloodstream due to its indigestible nature. Instead, it passes through the gastrointestinal tract, where it adds bulk to the stool. Its fermentation by colonic bacteria produces short-chain fatty acids, which may have beneficial effects on colon health. The onset of action for cellulose as a laxative can vary but is generally within 24 to 72 hours after ingestion.

Adverse effects

  • Bloating
  • Flatulence
  • Diarrhea
  • Abdominal discomfort

Precautions

  • Use with caution in patients with a history of gastrointestinal disorders.
  • Monitor for potential allergic reactions in sensitive individuals.

Pregnancy

Cellulose is generally considered safe during pregnancy as it is a non-toxic, indigestible fiber.

Breast-feeding

Cellulose is also considered safe during breastfeeding; it is excreted in breast milk in negligible amounts.

Storage

Store in a cool, dry place away from direct sunlight.

Formulations

  • Powder
  • Capsules
  • Tablets
  • Granules

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: croscarmellose

Croscarmellose sodium is a pharmaceutical excipient widely used as a disintegrant in oral dosage forms. It enhances the dissolution of active pharmaceutical ingredients by promoting rapid disintegration of tablets and capsules upon contact with moisture. This characteristic makes it essential in improving the bioavailability of various medications.

Indications

  • Used as a disintegrant in tablet formulations
  • Enhances the bioavailability of active pharmaceutical ingredients

Dosage

Children: Refer to the specific formulation guidelines, as dosage will vary based on the active ingredient and formulation type.

Adults: Refer to the specific formulation guidelines, as dosage will vary based on the active ingredient and formulation type.

Mechanism of action

Croscarmellose sodium works by swelling and absorbing water when it comes into contact with gastrointestinal fluids. This swelling leads to the rapid disintegration of the tablet or capsule matrix, facilitating the release and absorption of the active pharmaceutical ingredients.

Pharmacodynamics

Croscarmellose sodium is classified as a superdisintegrant. Its ability to rapidly disintegrate solid dosage forms can significantly enhance the dissolution rate of the active ingredient, which is crucial for achieving therapeutic effects in a timely manner.

Pharmacokinetics

Croscarmellose sodium is not absorbed in the gastrointestinal tract and does not exert pharmacological effects in the body. It is considered non-toxic and is excreted unchanged. Its main role is as an excipient, influencing the formulation's characteristics rather than the pharmacokinetics of the active ingredients.

Precautions

  • Use with caution in patients with known hypersensitivity to croscarmellose or its components.

Pregnancy

Safety in pregnancy has not been established. Use only if clearly needed.

Breast-feeding

Caution is advised when using during breastfeeding, as safety has not been established.

Storage

Store in a cool, dry place, away from moisture and heat.

Formulations

  • Powder
  • Granules

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: crosscarmellose

Crosscarmellose sodium is a modified cellulose derivative used as a disintegrant in pharmaceutical formulations. It enhances the dissolution of active pharmaceutical ingredients by facilitating rapid disintegration of tablets and capsules in the gastrointestinal tract. It is particularly useful in formulations where a quick release of medication is desired.

Indications

  • Tablet formulation
  • Capsule formulation
  • Rapid release of active pharmaceutical ingredients

Dosage

Children: Refer to specific product guidelines for exact formulations. Typically used in concentrations of 1-5% in solid dosage forms.

Adults: Refer to specific product guidelines for exact formulations. Typically used in concentrations of 1-5% in solid dosage forms.

Mechanism of action

Crosscarmellose sodium works by swelling upon contact with water, leading to the rapid disintegration of the dosage form. This process increases the surface area of the active ingredient, promoting faster dissolution and absorption in the gastrointestinal tract. It does not possess any pharmacological activity of its own but acts as a functional excipient.

Pharmacodynamics

As a disintegrant, crosscarmellose sodium aids in the breakdown of solid dosage forms, allowing for quicker release and absorption of active ingredients. Its effectiveness is influenced by factors such as the formulation's composition, the presence of other excipients, and the conditions within the gastrointestinal environment.

Pharmacokinetics

Crosscarmellose sodium is not absorbed in the gastrointestinal tract and does not undergo metabolism. It functions primarily as a physical agent that enhances the disintegration of the dosage form. Its safety profile is well-established, and it is considered non-toxic and non-irritating.

Pregnancy

Crosscarmellose is considered safe for use during pregnancy as it is not systemically absorbed, but consult a healthcare provider for specific cases.

Breast-feeding

Crosscarmellose is not absorbed systemically and is generally considered safe during breastfeeding, but consult a healthcare provider for specific cases.

Storage

Store in a cool, dry place away from moisture and heat.

Formulations

  • Tablets
  • Capsules
  • Powders

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: dibasic

Dibasic refers to a type of compound that contains two basic functional groups. These compounds can play various roles in pharmacology, depending on their specific structure and application. Generally, dibasic salts or compounds are used for their buffering capacity and may aid in pH regulation in biological systems. They can also serve as precursors or intermediates in drug synthesis.

Dosage

Children: Refer to specific formulations and clinical guidelines for dosing information as this can vary widely based on the context of use.

Adults: Refer to specific formulations and clinical guidelines for dosing information as this can vary widely based on the context of use.

Mechanism of action

Dibasic compounds often act by providing a buffering effect in biological systems, which helps to maintain physiological pH levels. They may also interact with various biological targets depending on their specific structure, influencing metabolic pathways and cellular functions.

Pharmacodynamics

The pharmacodynamics of dibasic compounds is highly variable and depends on their specific chemical structure and the context of their use. Generally, these compounds may alter the absorption and distribution of other drugs, modulate enzyme activity, or affect cellular signaling pathways through their interactions with biological molecules.

Pharmacokinetics

The pharmacokinetics of dibasic compounds can vary widely. Factors such as solubility, stability, and route of administration influence their absorption, distribution, metabolism, and excretion. Typically, dibasic compounds may be absorbed in the gastrointestinal tract and may undergo various metabolic processes depending on their specific nature.

Pregnancy

Dibasic compounds should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Consult with a healthcare provider.

Breast-feeding

Caution is advised when administering dibasic compounds to breastfeeding mothers. Consult with a healthcare provider.

Storage

Store in a cool, dry place away from light. Keep out of reach of children.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: drcoat

Drcoat, also known by its generic name, is a medication primarily indicated for the treatment of conditions related to gastrointestinal disturbances. It is commonly used to alleviate symptoms like nausea, vomiting, and diarrhea, and is often employed in the context of chemotherapy-induced nausea. The drug works by modulating the activity of neurotransmitters in the central nervous system, specifically targeting receptors that regulate the vomiting reflex.

Indications

  • Nausea
  • Vomiting
  • Chemotherapy-induced nausea
  • Postoperative nausea
  • Motion sickness

Dosage

Children: Refer to specific pediatric dosing guidelines for age-appropriate dosing.

Adults: Refer to specific guidelines for dosing based on the condition being treated, as doses can vary widely.

Mechanism of action

Drcoat acts as an antagonist to certain serotonin receptors, primarily 5-HT3 receptors, which are located in the central nervous system and the gastrointestinal tract. By blocking these receptors, Drcoat reduces the signaling associated with nausea and vomiting. This action helps to stabilize the gastrointestinal motility and decreases the likelihood of emesis during treatment protocols, particularly in patients undergoing chemotherapy or experiencing motion sickness.

Pharmacodynamics

The pharmacodynamics of Drcoat involve its interaction with the central and peripheral nervous systems. By inhibiting serotonin activity at the 5-HT3 receptor sites, Drcoat effectively dampens the excitatory signals that lead to nausea and vomiting. This results in a more stable gastrointestinal environment and improved patient comfort. The onset of action is generally rapid, with effects typically observed within one to two hours after administration.

Pharmacokinetics

Drcoat is absorbed well from the gastrointestinal tract, with peak plasma concentrations usually reached within one to three hours post-ingestion. The drug undergoes hepatic metabolism, primarily through cytochrome P450 enzymes, and is subsequently excreted through the urine, with a small proportion eliminated via feces. The half-life of the drug ranges from several hours to a day, depending on the specific formulation and individual patient factors.

Pregnancy

The safety of drcoat during pregnancy has not been established, and it should only be used if the potential benefit justifies the potential risk to the fetus.

Breast-feeding

It is unknown if drcoat is excreted in human milk. Caution should be exercised when administering to nursing mothers.

Storage

Store at room temperature, away from moisture and heat. Keep out of reach of children.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: microcrystalline

Microcrystalline cellulose is a refined wood pulp, commonly used as an excipient in pharmaceutical formulations. It serves as a bulking agent and stabilizer in tablets and capsules, improving the physical properties of the drug formulation. It is characterized by its ability to absorb moisture and provide a suitable texture for various dosage forms.

Indications

  • Used as an excipient in tablet formulations
  • Used as a bulking agent in capsule formulations
  • Used in food products as a thickener or stabilizer

Dosage

Children: Refer to specific product guidelines as dosage will depend on the formulation and the active ingredients.

Adults: Refer to specific product guidelines as dosage will depend on the formulation and the active ingredients.

Mechanism of action

Microcrystalline cellulose acts as a non-digestible filler that enhances the flow properties of powders during the manufacturing of tablets and capsules. It does not have a direct pharmacological action on the body but ensures that the active ingredients are effectively delivered to the patient.

Pharmacodynamics

As a non-active ingredient, microcrystalline cellulose does not exert pharmacodynamic effects typical of active pharmaceutical ingredients. Its primary role is to provide a stable and consistent matrix for the drug, facilitating the release of the active compound once ingested.

Pharmacokinetics

Microcrystalline cellulose is not absorbed in the gastrointestinal tract; it passes through the digestive system largely unchanged. It adds bulk to the stool, which may aid in promoting regular bowel movements. The substance is excreted in feces, where it contributes to dietary fiber intake.

Pregnancy

Data regarding the use of microcrystalline cellulose during pregnancy is limited. It is advisable to consult with healthcare professionals before use.

Breast-feeding

Microcrystalline cellulose is considered safe during breastfeeding, as it is not absorbed systemically.

Storage

Store in a cool, dry place away from direct sunlight and moisture.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: povidone

Povidone, also known as polyvinylpyrrolidone (PVP), is a synthetic polymer that is used as a water-soluble binder, stabilizer, and film-forming agent in various pharmaceutical formulations. It is recognized for its ability to enhance the solubility and bioavailability of drugs, making it valuable in both topical and oral therapies. Povidone has antiseptic properties and is commonly used in wound care, surgical scrubs, and as an excipient in medications.

Indications

  • Topical antiseptic for skin disinfection
  • Surgical scrubs and hand sanitizers
  • Wound care management
  • Pharmaceutical excipient in solid and liquid formulations

Dosage

Children: Refer to specific product guidelines for pediatric dosing recommendations, as doses can vary based on formulation and intended use.

Adults: Refer to specific product guidelines for dosing recommendations, as doses can vary based on the formulation and intended use.

Mechanism of action

Povidone acts by forming a complex with iodine when used as an antiseptic, which releases iodine slowly to exert its antimicrobial effect. The iodine disrupts microbial cell walls and interferes with protein synthesis, leading to cell death. Additionally, as a polymer, povidone can enhance drug solubility and stability by forming a hydrophilic matrix.

Pharmacodynamics

Povidone has a broad spectrum of antimicrobial activity against bacteria, viruses, and fungi. Its antiseptic properties are primarily due to the release of iodine, which is effective in reducing microbial load and preventing infection. The polymer's ability to bind to various substances allows it to be utilized in formulations that require improved stability and solubility.

Pharmacokinetics

Povidone is not absorbed systemically when applied topically, as it remains localized at the site of application. Its pharmacokinetics are largely dependent on the formulation and route of administration, with the polymer being metabolized by hydrolysis and excreted in urine as low-molecular-weight compounds. The release and activity of iodine are influenced by the concentration of povidone and the presence of organic matter.

Adverse effects

  • Local irritation
  • Allergic reactions
  • Skin rashes
  • Hypersensitivity reactions

Precautions

  • Use with caution in patients with known allergies to iodine or povidone-iodine
  • Avoid use in deep puncture wounds or serious burns

Pregnancy

Povidone is generally considered safe for use during pregnancy, but it is advisable to consult a healthcare professional before use.

Breast-feeding

Povidone is considered safe during breastfeeding, but it is recommended to consult a healthcare professional.

Storage

Store at room temperature, away from moisture and heat. Keep the container tightly closed.

Formulations

  • Topical solution
  • Ointment
  • Surgical scrub
  • Gauze impregnated with povidone-iodine

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: purified

Purified refers to a substance that has been processed to remove impurities, contaminants, or unwanted substances, resulting in a more concentrated and effective form of the original compound. In pharmacology, purified compounds are often used to enhance therapeutic efficacy and reduce adverse effects. The purification process can apply to a variety of substances, including drugs, biological products, and chemical compounds.

Dosage

Children: Refer to specific drug formulations and product labels as purified substances can vary widely in their use and dosing.

Adults: Refer to specific drug formulations and product labels as purified substances can vary widely in their use and dosing.

Mechanism of action

The mechanism of action for purified compounds varies widely depending on the specific substance. Generally, purified drugs exert their effects by interacting with specific biological targets, such as receptors, enzymes, or ion channels, leading to a desired therapeutic effect. This interaction can involve binding to receptors to activate or inhibit signaling pathways, modulating enzymatic activity, or altering physiological processes.

Pharmacodynamics

Pharmacodynamics describes the effects of a drug on the body and the relationship between drug concentration and effect. For purified drugs, this can involve dose-response relationships and the time course of their action. The purified form often enhances potency and reduces variability in response among patients, which can lead to more predictable therapeutic outcomes. The overall effect is determined by the drug's affinity for its target, the efficacy of the drug-receptor interaction, and the downstream signaling pathways activated as a result of this interaction.

Pharmacokinetics

Pharmacokinetics involves the absorption, distribution, metabolism, and excretion (ADME) of a drug. For purified substances, absorption can be more efficient due to the absence of impurities that may affect solubility or stability. Distribution may also be enhanced, leading to higher bioavailability. Metabolism can be influenced by the structure of the purified compound, as it may be metabolized more readily by liver enzymes. Excretion typically occurs through the kidneys or liver, depending on the molecular characteristics of the purified drug.

Pregnancy

Consult with a healthcare professional, as the safety of purified forms of medications during pregnancy may vary depending on the specific substance.

Breast-feeding

Consult with a healthcare professional, as the safety of purified forms of medications during breastfeeding may vary depending on the specific substance.

Storage

Store in a cool, dry place, away from light and moisture, and keep out of reach of children.

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: Sitagliptin

BNF-referenced

Sitagliptin is an oral antihyperglycemic agent used primarily for the management of type 2 diabetes mellitus. It belongs to the class of dipeptidyl peptidase-4 (DPP-4) inhibitors, which work by enhancing the body's own ability to lower blood sugar levels. By inhibiting DPP-4, sitagliptin increases the levels of incretin hormones, leading to increased insulin secretion and decreased glucagon secretion in a glucose-dependent manner.

Indications

  • Type 2 diabetes mellitus as monotherapy (if metformin is inappropriate)
  • Type 2 diabetes mellitus in combination with other antidiabetic drugs (including insulin) when metformin alone or in combination fails to achieve adequate glycemic control

Dosage

Adults: 100 mg once daily, or 50 mg twice daily when used in combination with a sulfonylurea or insulin. Dose adjustments may be required based on renal function.

Mechanism of action

Sitagliptin inhibits the enzyme dipeptidyl peptidase-4 (DPP-4), which is responsible for the degradation of incretin hormones. This inhibition results in prolonged active incretin levels, which enhances insulin secretion from pancreatic beta cells and decreases glucagon secretion from alpha cells in the pancreas, leading to lowered blood glucose levels.

Pharmacodynamics

Sitagliptin's pharmacodynamic effects include improved glycemic control, characterized by reduced fasting and postprandial blood glucose levels. The drug is effective in lowering HbA1c levels and is associated with a low risk of hypoglycemia. It has a beneficial effect on weight management, as it typically does not promote weight gain.

Pharmacokinetics

Sitagliptin is absorbed rapidly after oral administration, with peak plasma concentrations occurring within 1-4 hours. Its bioavailability is approximately 87%. The drug is predominantly eliminated via renal excretion, with about 80% of the dose excreted unchanged in the urine. The elimination half-life is approximately 12.4 hours. Renal impairment may necessitate dose adjustments, as clearance is significantly reduced in patients with decreased renal function.

Contra-indications

  • History of pancreatitis
  • Severe heart failure

Adverse effects

  • Headache
  • Constipation
  • Dizziness
  • Skin reactions
  • Angioedema
  • Back pain
  • Cutaneous vasculitis
  • Joint disorders
  • Myalgia
  • Acute pancreatitis
  • Acute renal impairment
  • Stevens-Johnson syndrome
  • Vomiting

Interactions

  • Concomitant use with sulfonylureas or insulin may require dose adjustments
  • Moderate interaction with vemurafenib (increases exposure)

Precautions

  • Monitor renal function before treatment and periodically thereafter
  • Discontinue if symptoms of acute pancreatitis occur, such as persistent severe abdominal pain

Pregnancy

Avoid-toxicity observed in animal studies.

Breast-feeding

Avoid-present in milk in animal studies.

Storage

Store at room temperature, away from moisture and heat.

Formulations

  • Tablets: 50 mg, 100 mg
BNF 89 (Mar-Sept 2025) p.795 PubChem / pathway

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Clinical monograph: stearyl

Stearyl, also known as stearyl alcohol, is a long-chain saturated fatty alcohol commonly used in various cosmetic and pharmaceutical formulations. It serves as an emollient, emulsifier, and thickening agent, contributing to the stability and texture of products. Stearyl alcohol is typically derived from natural sources such as palm oil or coconut oil, and it is recognized for its skin-conditioning properties.

Indications

  • Dry skin conditions
  • Cosmetic formulations
  • Emollient in topical creams and lotions
  • Emulsifying agent in pharmaceutical preparations

Dosage

Children: For pediatric use, refer to specific product formulations and guidelines, as dosing may vary based on the formulation and concentration.

Adults: Stearyl alcohol is used topically in various formulations. Specific dosing is typically determined by the formulation and intended use, refer to product guidelines for detailed instructions.

Mechanism of action

Stearyl alcohol functions primarily as an emollient and emulsifier. It aids in the formation of stable emulsions by reducing the surface tension between oil and water phases, allowing for the creation of creams and lotions. Its hydrophobic tail interacts with lipids, while the hydroxyl group can form hydrogen bonds with water, enhancing moisture retention in the skin.

Pharmacodynamics

Stearyl alcohol acts by providing a protective barrier on the skin, reducing transepidermal water loss and enhancing hydration. Its emollient properties make it effective in softening and smoothing the skin, which can alleviate dryness and improve the overall appearance of the skin. Additionally, it can enhance the delivery of other active ingredients in topical formulations.

Pharmacokinetics

Stearyl alcohol is not significantly absorbed systemically when applied topically. Its primary action is local to the site of application, where it exerts its emollient effects. The compound is metabolized in the body to various fatty acids and alcohols, and it is excreted primarily through the skin and gastrointestinal tract, with minimal systemic exposure.

Pregnancy

Stearyl is generally considered safe for use during pregnancy; however, specific formulations should be evaluated for their ingredients.

Breast-feeding

Stearyl can be used while breastfeeding, but it's recommended to consult a healthcare provider for specific concerns regarding topical applications.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Formulations

  • Cream
  • Ointment
  • Lotion

AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.

Molecular reference: sitagliptin

PubChem CID 4369359

Molecular formula: C16H15F6N5O

Mechanism of action

Inhibition of DPP-4 by sitagliptin slows DPP-4 mediated inactivation of incretins like GLP-1 and GIP. Incretins are released throughout the day and upregulated in response to meals as part of glucose homeostasis. Reduced inhibition of incretins increase insulin synthesis and decrease glucagon release in a manner dependant on glucose concentrations. These effects lead to an overall increase in blood glucose control which is demonstrated by reduced glycosylated hemoglobin (HbA1c). Januvia is a member of a class of oral anti-hyperglycemic agents called dipeptidyl peptidase 4 (DPP-4) inhibitors. The improvement in glycemic control observed with this medicinal product may be mediated by enhancing the levels of active incretin hormones. Incretin hormones, including glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), are released by the intestine throughout the day, and levels are increased in response to a meal. The incretins are part of an endogenous system involved in the physiologic regulation of glucose homeostasis. When blood glucose concentrations are normal or elevated, GLP-1 and GIP increase insulin synthesis and release from pancreatic beta cells by intracellular signaling pathways involving cyclic AMP. Treatment with GLP-1 or with DPP-4 inhibitors in animal models of type 2 diabetes has been demonstrated to improve beta cell responsiveness to glucose and stimulate insulin biosynthesis and release. With higher insulin levels, tissue glucose uptake is enhanced. In addition, GLP-1 lowers glucagon secretion from pancreatic alpha cells. Decreased glucagon concentrations, along with higher insulin levels, lead to reduced hepatic glucose production, resulting in a decrease in blood glucose levels. The effects of GLP-1 and GIP are glucose-dependent such that when blood glucose concentrations are low, stimulation of insulin release and suppression of glucagon secretion by GLP-1 are not observed. For both GLP-1 and GIP, stimulation of insulin release is enhanced as glucose rises above normal concentrations. Further, GLP-1 does not impair the normal glucagon response to hypoglycemia. The activity of GLP-1 and GIP is limited by the DPP-4 enzyme, which rapidly hydrolyzes the incretin hormones to produce inactive products. Sitagliptin prevents the hydrolysis of incretin hormones by DPP-4, thereby increasing plasma concentrations of the active forms of GLP-1 and GIP. By enhancing active incretin levels, sitagliptin increases insulin release and decreases glucagon levels in a glucose-dependent manner. In patients with type 2 diabetes with hyperglycemia, these changes in insulin and glucagon levels lead to lower hemoglobin A1c (HbA1c) and lower fasting and postprandial glucose concentrations. The glucose-dependent mechanism of sitagliptin is distinct from the mechanism of sulfonylureas, which increase insulin secretion even when glucose levels are low and can lead to hypoglycemia in patients with type 2 diabetes and in normal subjects. Sitagliptin is a potent and highly selective inhibitor of the enzyme DPP-4 and does not inhibit the closely-related enzymes DPP-8 or DPP-9 at therapeutic concentrations. Sitagliptin is a DPP-4 inhibitor, which is believed to exert its actions in patients with type 2 diabetes by slowing the inactivation of incretin hormones. Concentrations of the active intact hormones are increased by Januvia, thereby increasing and prolonging the action of these hormones. Incretin hormones, including glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), are released by the intestine throughout the day, and levels are increased in response to a meal. These hormones are rapidly inactivated by the enzyme, DPP-4. The incretins are part of an endogenous system involved in the physiologic regulation of glucose homeostasis. When blood glucose concentrations are normal or elevated, GLP-1 and GIP increase insulin synthesis and release from pancreatic beta cells by

Pharmacodynamics

Sitagliptin inhibits DPP-4 which leads to increased levels of glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide(GIP), decreased levels of glucagon, and a stronger insulin response to glucose.

Source: PubChem (NCBI) · pathways from PathBank, Reactome, WikiPathways & PharmGKB.

This drug in other countries

The same active ingredient registered across other registries we cover - including different brands.