CTC 20% WSP

Indications

• Gastrointestinal disturbances
• Toxin adsorption in cases of poisoning
• Diarrhea
• Gastroenteritis

Dosage

Children: Refer to the specific product guidelines or consult clinical resources for dosing recommendations.

Adults: Refer to the specific product guidelines or consult clinical resources for dosing recommendations.

Mechanism of action

Bentonite works by adsorbing toxins and pathogens in the gastrointestinal tract. The high surface area and negative charge of bentonite particles attract positively charged ions, allowing it to bind to various substances, including bacteria and toxins, thereby facilitating their removal from the body.

Pharmacodynamics

Bentonite's pharmacodynamic properties are largely attributed to its adsorptive capacity. It can effectively bind to various drugs and toxins, reducing their bioavailability. This property makes it useful in treating cases of poisoning or overdose, as it can prevent the absorption of harmful substances in the intestines.

Pharmacokinetics

Bentonite is not absorbed systemically. After oral administration, it remains in the gastrointestinal tract where it exerts its effects. The clay is eventually excreted in the feces. The onset of action can vary depending on the formulation and the presence of other substances in the gastrointestinal tract.

Adverse effects

• Constipation
• Abdominal discomfort
• Nausea

Interactions

• May reduce the absorption of other medications when taken concurrently

Precautions

• Use with caution in patients with gastrointestinal obstructions
• Ensure adequate hydration to prevent constipation

Pregnancy

Bentonite is generally considered safe during pregnancy; however, clinical data is limited.

Breast-feeding

Bentonite is likely safe during breastfeeding, but consult a healthcare professional for personalized advice.

Storage

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

Formulations

• Powder
• Capsules
• Suspension

Indications

• Food preservative
• Treatment of urea cycle disorders
• Metabolic disorders involving benzoyl-CoA

Dosage

Children: Refer to the BNF for Children for specific dosing guidelines based on condition.

Adults: Refer to the BNF for specific dosing guidelines based on condition.

Mechanism of action

Benzoate acts mainly by inhibiting the growth of bacteria and fungi through its ability to lower the pH, creating an environment that is less favorable for microbial growth. It is also involved in metabolic pathways where it helps in the conjugation of toxic substances, facilitating their excretion from the body.

Pharmacodynamics

Benzoate is known for its antimicrobial properties, which are particularly effective against a wide range of fungi and bacteria. Its efficacy as a preservative is due to its ability to penetrate microbial cell membranes and disrupt their metabolic processes. Additionally, it has been observed to modulate various metabolic pathways, particularly those associated with aromatic compound degradation.

Pharmacokinetics

After ingestion, benzoate is rapidly absorbed in the gastrointestinal tract. It is metabolized primarily in the liver, where it undergoes conjugation with glycine to form hippurate, which is then excreted in the urine. The half-life of benzoate varies depending on individual metabolic rates but is generally short due to its efficient conversion and excretion.

Pregnancy

There is limited data on the use of benzoate in pregnancy. Consultation with healthcare professionals is advised before use.

Breast-feeding

Limited data is available on the excretion of benzoate in breast milk. Caution is recommended when administering to nursing mothers.

Storage

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

Indications

• Bacterial infections
• Respiratory tract infections
• Urinary tract infections
• Acne
• Chlamydia infections
• Mycoplasma pneumonia

Dosage

Children: Refer to the BNF for Children for specific dosing information.

Adults: Refer to the BNF for specific dosing information.

Mechanism of action

Chlortetracycline exerts its antibacterial effect by binding to the 30S ribosomal subunit of bacteria, inhibiting protein synthesis. This action prevents the addition of amino acids to the growing polypeptide chain, ultimately leading to cell death in susceptible organisms. It is effective against a variety of organisms, including both aerobic and anaerobic bacteria.

Pharmacodynamics

The pharmacodynamics of chlortetracycline involves its ability to inhibit bacterial protein synthesis, which is crucial for bacterial growth and reproduction. The drug's effectiveness is dependent on the concentration of the drug at the site of infection and the susceptibility of the bacteria. Bacteriostatic in nature, chlortetracycline stops bacteria from multiplying rather than killing them outright.

Pharmacokinetics

Chlortetracycline is well absorbed from the gastrointestinal tract, with peak plasma concentrations occurring within 1 to 2 hours after oral administration. It is widely distributed throughout the body, including into tissues and body fluids. The drug can be excreted in urine, and its half-life varies from 6 to 12 hours, depending on the individual’s renal function. Biliary excretion also occurs.

Contra-indications

• Hypersensitivity to chlortetracycline or any component of the formulation
• Porphyria
• Renal impairment

Adverse effects

• Gastrointestinal disturbances (nausea, vomiting, diarrhea)
• Photosensitivity
• Skin rashes
• Esophageal irritation
• Hepatotoxicity
• Superinfection (due to prolonged use)

Interactions

• Antacids containing aluminum, calcium, or magnesium may reduce absorption of chlortetracycline
• Iron supplements can interfere with absorption
• Oral contraceptives may have reduced efficacy when taken with chlortetracycline
• Warfarin may have increased anticoagulant effect

Precautions

• Use with caution in patients with liver or renal impairment
• Monitor for signs of superinfection
• Avoid prolonged exposure to sunlight or UV light
• Consider potential effects on developing teeth in children

Pregnancy

Chlortetracycline is generally not recommended during pregnancy due to potential harm to the developing fetus, particularly effects on tooth development.

Breast-feeding

Chlortetracycline is excreted in breast milk and may affect the infant; use with caution.

Storage

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

Formulations

• Oral tablets
• Topical ointments
• Liquid formulations

Indications

• Lactose intolerance
• As a filler or excipient in pharmaceutical formulations

Dosage

Children: Refer to the BNF for Children for specific dosing information based on age and clinical context.

Adults: Refer to the BNF for specific dosing information based on clinical context.

Mechanism of action

Lactose is metabolized in the intestine by the enzyme lactase into its constituent monosaccharides, glucose and galactose. In individuals with lactase deficiency, unabsorbed lactose passes into the colon, where it is fermented by bacteria, leading to gas production and osmotic effects that contribute to diarrhea.

Pharmacodynamics

The pharmacodynamics of lactose are primarily related to its effects on gastrointestinal function. In healthy individuals, lactose is effectively broken down into glucose and galactose, which are absorbed and utilized for energy. In individuals with lactose intolerance, the unabsorbed lactose can cause osmotic diarrhea and colonic fermentation, leading to discomfort and symptoms associated with lactose intolerance.

Pharmacokinetics

Lactose is not absorbed in the gastrointestinal tract until it is hydrolyzed into glucose and galactose by lactase. The absorption of glucose and galactose occurs in the small intestine. The half-life is not applicable as lactose is not typically administered as a medication but is rather ingested as a natural component of food. Its metabolism primarily occurs in the intestine.

Adverse effects

• Bloating
• Diarrhea
• Abdominal pain
• Flatulence

Precautions

• Use with caution in patients with lactose intolerance.
• Consider potential for gastrointestinal upset in sensitive individuals.

Pregnancy

Lactose is generally considered safe for use during pregnancy. However, consult a healthcare professional for individual advice.

Breast-feeding

Lactose is safe to use while breastfeeding, as it is a natural sugar present in breast milk.

Storage

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

Formulations

• Powder
• Granules
• Tablets
• Syrup