Live LAS

Indications

• pH stabilization in laboratory experiments
• buffering during physiological studies
• preparation of samples for biochemical assays
• maintenance of pH in parenteral fluids

Dosage

Children: Refer to specific buffer formulations for detailed dosing guidance.

Adults: Refer to specific buffer formulations for detailed dosing guidance.

Mechanism of action

Buffers work by neutralizing added acids or bases through chemical reactions. For example, a buffer composed of acetic acid and sodium acetate can absorb excess hydrogen ions (from added acids) or donate hydrogen ions (to neutralize added bases), thus stabilizing the pH of the solution. This equilibrium is governed by the Henderson-Hasselbalch equation, which relates pH to the concentrations of the acidic and basic components of the buffer.

Pharmacodynamics

The pharmacodynamics of buffers involves their capacity to maintain pH levels within a target range, which is essential for various physiological processes. For instance, physiological buffers such as bicarbonate and phosphate play critical roles in maintaining the acid-base balance in the body, ensuring proper cellular function, enzyme activity, and metabolic processes.

Pharmacokinetics

The pharmacokinetics of buffer components depends on their specific chemical nature. Weak acids and bases used in buffers are typically absorbed and metabolized according to their molecular characteristics. For instance, bicarbonate can be reabsorbed in the kidneys and plays a significant role in systemic pH regulation. However, since buffer solutions are not typically absorbed in the same way as pharmaceutical drugs, their pharmacokinetic profiles are less relevant in a conventional sense.

Pregnancy

Buffering agents are generally considered safe during pregnancy; however, specific formulations should be evaluated for safety and efficacy.

Breast-feeding

Most buffering agents are considered safe during breastfeeding, but it is advisable to consult healthcare providers regarding specific formulations.

Storage

Store in a cool, dry place, away from direct sunlight and moisture. Follow specific storage instructions on the product label.

Dosage

Children: Refer to specific medications used to treat the particular disease for dosing information.

Adults: Refer to specific medications used to treat the particular disease for dosing information.

Mechanism of action

The mechanism of action varies significantly depending on the specific disease in question. For infectious diseases, pathogens may interact with host cells, leading to inflammation, immune response activation, or tissue damage. Chronic diseases often involve complex interactions between genetic factors, lifestyle choices, and environmental influences. For example, in autoimmune diseases, the immune system mistakenly targets healthy cells, leading to inflammation and tissue destruction.

Pharmacodynamics

Pharmacodynamics of disease involves understanding how the disease state affects physiological functions and the body's response to treatment. In infectious diseases, the presence of pathogens can lead to altered immune responses, while chronic diseases may involve changes in metabolic pathways, hormonal balances, or cellular functions. Medications targeting disease processes aim to restore normal function, alleviate symptoms, or eradicate pathogens.

Pharmacokinetics

Pharmacokinetics is not applicable to the term 'disease' as it refers to the movement of drugs within the body, including absorption, distribution, metabolism, and excretion of specific medications used to treat diseases. Each medication will have its own pharmacokinetic profile depending on its chemical properties and the disease being treated.

Indications

• Clinical term 1
• Common term 1
• Clinical term 2
• Common term 2

Dosage

Children: Refer to the BNF for Children for specific paediatric dosing guidelines.

Adults: Refer to the BNF for specific adult dosing guidelines.

Mechanism of action

Dose acts by modulating the activity of specific neurotransmitter receptors and ion channels, influencing various physiological pathways. Its precise mechanism may involve interactions with G-protein coupled receptors, leading to downstream signaling effects that impact cellular responses.

Pharmacodynamics

Dose exhibits a range of effects depending on the dosage and target tissues. It is known to alter neurotransmitter release, affect ion conductance, and influence metabolic pathways, thereby contributing to its therapeutic efficacy and potential side effects.

Pharmacokinetics

Dose is generally absorbed following administration, with peak plasma concentrations occurring within a specified timeframe. Its distribution is influenced by tissue binding and permeability across cell membranes. The drug is metabolized primarily in the liver, with metabolites being excreted via renal and biliary routes. The half-life can vary based on individual patient factors, including age, liver function, and other concurrent medications.

Indications

• Severe infections caused by gram-negative bacteria
• Complicated urinary tract infections
• Bacterial sepsis
• Endocarditis caused by susceptible organisms

Dosage

Children: Dosing in children is also weight-based and varies by indication. Refer to the BNF for Children for specific dosing recommendations.

Adults: Dosage varies significantly based on the infection severity and type, renal function, and the specific bacterial susceptibility. Refer to clinical guidelines or the BNF for precise dosing.

Mechanism of action

Gram works by inhibiting bacterial protein synthesis. It binds to the 30S ribosomal subunit of the bacteria, causing misreading of the mRNA and ultimately preventing the synthesis of essential proteins necessary for bacterial growth and replication.

Pharmacodynamics

The pharmacodynamics of Gram include its bactericidal activity against susceptible bacteria. The drug shows concentration-dependent killing, meaning that higher drug concentrations correlate with greater bactericidal effects. The post-antibiotic effect is noted, where bacterial growth is inhibited even after the drug concentration falls below the minimum inhibitory concentration (MIC).

Pharmacokinetics

Gram is usually administered parenterally (intravenously or intramuscularly), and its absorption can vary based on the route of administration. It is distributed widely in body fluids and tissues, although it does not penetrate well into the central nervous system. The drug is primarily eliminated through the kidneys, and its half-life may be prolonged in patients with renal impairment. Monitoring of drug levels may be necessary to avoid toxicity.

Adverse effects

• Nausea
• Vomiting
• Diarrhea
• Abdominal pain
• Allergic reactions
• Rash
• Renal dysfunction

Precautions

• Use with caution in patients with renal impairment
• Monitor renal function during therapy
• Assess for potential allergic reactions

Pregnancy

Use only if the potential benefit justifies the potential risk to the fetus. Consult with a healthcare provider.

Breast-feeding

Use with caution, as it may be excreted in breast milk. Consult with a healthcare provider.

Storage

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

Indications

• Acute lymphoblastic leukemia (ALL)
• Acute myeloid leukemia (AML)
• Lymphoblastic lymphoma

Dosage

Children: Refer to specific guidelines as dosing may vary based on protocol and patient response.

Adults: Refer to specific guidelines as dosing may vary based on protocol and patient response.

Mechanism of action

Lasota functions as a recombinant enzyme that catalyzes the hydrolysis of asparagine to aspartic acid and ammonia. This enzymatic reaction reduces the availability of asparagine in the bloodstream, which is crucial for the survival of lymphoid cells. Tumors, particularly lymphoblastic leukemia cells, are unable to synthesize asparagine due to the lack of asparagine synthetase, making them susceptible to this depletion.

Pharmacodynamics

The pharmacodynamic effects of lasota are centered on its ability to induce asparagine depletion, leading to apoptosis in asparagine-dependent neoplastic cells. The effectiveness of lasota is influenced by the concentration of asparagine in the body and the sensitivity of the tumor to asparagine depletion. The therapeutic window is critical, as excessive depletion can lead to adverse effects.

Pharmacokinetics

Lasota has a unique pharmacokinetic profile characterized by a short half-life and variable distribution in the body. It is administered intravenously and is rapidly distributed to tissues. The elimination of lasota primarily occurs through hydrolysis and is influenced by the patient's body weight and the presence of enzymes in the blood. Due to its enzyme nature, it does not have a traditional clearance mechanism related to liver or kidney function, making dosing adjustments less straightforward.

Pregnancy

There is limited data on the use of lasota during pregnancy. Caution is advised, and it should only be used if the potential benefit justifies the potential risk to the fetus.

Breast-feeding

It is not known whether lasota is excreted in human milk. Caution is advised when administering to nursing mothers.

Storage

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

Indications

• Nutritional supplementation
• Bone health support
• Growth and development in children
• Muscle repair and recovery
• Hydration

Dosage

Children: Refer to pediatric dietary guidelines; daily intake varies by age, generally 2-2.5 servings per day for children.

Adults: Refer to dietary guidelines for recommended daily intake of dairy products, typically 2-3 servings per day.

Mechanism of action

The components of milk, particularly its proteins and fats, are digested and metabolized to provide energy and essential nutrients. Lactose is broken down into glucose and galactose by the enzyme lactase. Calcium and vitamin D are crucial for bone metabolism, while proteins support muscle and tissue repair and growth.

Pharmacodynamics

The consumption of milk leads to increased levels of calcium and other minerals in the bloodstream, which are vital for maintaining bone density and structure. The proteins in milk contribute to muscle protein synthesis and repair, alongside providing a source of energy. The bioactive compounds in milk may also have protective effects against certain diseases.

Pharmacokinetics

After ingestion, milk is digested in the stomach and small intestine, where nutrients are absorbed into the bloodstream. The absorption of lactose depends on the presence of lactase. The fats are emulsified and absorbed through the lymphatic system. Calcium absorption can be enhanced by vitamin D. The metabolic effects vary based on individual tolerance and the presence of digestive enzymes.

Adverse effects

• Lactose intolerance may cause gastrointestinal discomfort, bloating, and diarrhea in sensitive individuals.
• Allergic reactions may occur in individuals with a milk allergy, potentially leading to anaphylaxis.

Precautions

• Use with caution in individuals with lactose intolerance or milk allergies.
• Consult a healthcare provider before introducing milk into the diet of infants.

Pregnancy

Milk is generally considered safe during pregnancy, providing essential nutrients such as calcium and vitamin D. However, pregnant individuals should opt for pasteurized milk to reduce the risk of infections.

Breast-feeding

Milk can be consumed during breastfeeding, but it is important to monitor for any allergic reactions in the infant, especially if there is a family history of allergies.

Storage

Store milk in a cool place, preferably refrigerated at 4°C or lower. Consume before the expiration date to ensure safety and quality.

Formulations

• Whole milk
• Skimmed milk
• Low-fat milk
• Condensed milk
• Evaporated milk
• Milk powder

Indications

• Prevention of Newcastle disease in poultry
• Potential oncolytic therapy in cancer treatment

Dosage

Children: Refer to specific treatment protocols or clinical guidelines for dosages, as they may vary based on the context of use.

Adults: Refer to specific treatment protocols or clinical guidelines for dosages, as they may vary based on the context of use.

Mechanism of action

Newcastle disease virus exerts its effects primarily through the induction of apoptosis in infected cells and the activation of the host immune system. The virus binds to specific receptors on the surface of host cells, facilitating viral entry and replication. It leads to the release of pro-inflammatory cytokines and enhances the anti-tumor immune response in the context of oncolytic therapies.

Pharmacodynamics

The pharmacodynamics of Newcastle disease virus involves its ability to replicate in tumor cells, leading to cell lysis and release of viral progeny that can further infect and destroy adjacent tumor cells. The host's immune system is subsequently activated, enhancing the overall anti-tumor response.

Pharmacokinetics

The pharmacokinetics of Newcastle disease virus is complex, as it involves viral replication and dissemination within the host. Following administration, the virus replicates at the site of infection, with peak viral loads observed at various time points depending on the route of administration and the host's immune status. The virus is typically cleared by the immune system over time, although its persistence can vary based on the type of host cells infected.

Pregnancy

Safety in pregnancy has not been established. Use with caution and only if the potential benefit justifies the potential risk to the fetus.

Breast-feeding

Safety during breastfeeding is not well established. Caution is advised.

Storage

Store in a cool, dry place away from direct sunlight and heat. Follow specific storage requirements if available.

Indications

• Microbiological culture media
• Nutrient source for bacterial and fungal growth
• Biochemical applications in research

Dosage

Children: Refer to specific formulations or guidelines as appropriate, dosage is context-dependent based on application.

Adults: Refer to specific formulations or guidelines as appropriate, dosage is context-dependent based on application.

Mechanism of action

Peptone serves as a nutrient source for microorganisms, providing essential amino acids and peptides necessary for protein synthesis and cellular metabolism. By supplying a readily available source of nitrogen and carbon, peptone promotes the growth and proliferation of microbial cells.

Pharmacodynamics

Peptones enhance the growth of bacteria and fungi by supplying essential nutrients that facilitate cellular processes such as protein synthesis and energy production. The presence of peptones in culture media can influence the osmotic balance and pH, further supporting microbial growth and activity.

Pharmacokinetics

Peptones are not absorbed into the bloodstream when used in culture media, as their primary role is to support microbial growth rather than act as a pharmacological agent in humans. In laboratory settings, the degradation of peptones by microorganisms leads to further breakdown into simpler amino acids and other metabolites, which can then be utilized by the cells.

Pregnancy

Peptones are generally considered safe during pregnancy, but their use should be guided by a healthcare professional.

Breast-feeding

Peptones are typically regarded as safe during breastfeeding, yet it is advisable to consult a healthcare provider before use.

Storage

Store in a cool, dry place, away from direct sunlight and moisture. Ensure the container is tightly sealed to prevent contamination.

Formulations

• Powder
• Liquid

Indications

• HIV/AIDS
• Cancer
• Chronic pancreatitis
• Certain inflammatory diseases

Dosage

Children: Refer to the BNF for Children for specific paediatric dosing information regarding protease inhibitors.

Adults: Refer to the BNF for specific dosage recommendations for protease inhibitors based on the particular drug and condition being treated.

Mechanism of action

Proteases function by hydrolyzing the peptide bonds that link amino acids in proteins. This process is essential for the activation of many proteins and for the degradation of misfolded or damaged proteins. In antiretroviral therapy, protease inhibitors block the action of viral proteases, preventing the maturation of viral particles and thereby inhibiting viral replication.

Pharmacodynamics

Proteases exhibit a variety of pharmacodynamic effects depending on their specific type and target. For instance, HIV protease inhibitors prevent the cleavage of viral polyproteins, which is essential for the production of infectious viral particles. The inhibition of proteolytic activity can lead to accumulation of unprocessed protein precursors, ultimately reducing the viral load in patients with HIV.

Pharmacokinetics

The pharmacokinetic profile of proteases varies widely among different classes. Generally, they are absorbed following oral administration, but the extent of absorption can be affected by food intake. Many protease inhibitors undergo extensive hepatic metabolism, particularly via the cytochrome P450 enzyme system. The elimination half-life can range from several hours to days, depending on the specific protease. Renal excretion plays a significant role in the clearance of some proteases, while others may be predominantly excreted in the feces.

Pregnancy

Refer to specific product guidelines as data may vary.

Breast-feeding

Refer to specific product guidelines as data may vary.

Storage

Store at room temperature, away from moisture and light.

Indications

• Fluid replacement therapy in dehydration
• Electrolyte replenishment
• As a diluent for intravenous medications
• Wound irrigation
• Intra-amniotic instillation for abortion procedures

Dosage

Children: Paediatric dosing of saline is dependent

Adults: The dosage of saline varies depending on the clinical indication. For fluid resuscitation, isotonic saline (0.9% NaCl) is typically administered at a rate determined by the patient's condition and response to therapy. Refer to specific clinical guidelines for detailed dosing.

Mechanism of action

Sodium and chloride, the major electrolytes in extracellular fluid, control extracellular volume and blood pressure. Changes in sodium concentrations are linked to water balance disorders. Intra-amniotic instillation of hypertonic sodium chloride injection may induce abortion, potentially mediated by prostaglandins released from damaged decidual cells, resulting in uterine contractions that lead to evacuation of the fetus and placenta.

Pharmacodynamics

Sodium, as the principal cation in extracellular fluid, regulates water distribution, fluid balance, and osmotic pressure. It plays a crucial role in maintaining acid-base equilibrium in conjunction with chloride and bicarbonate. Chloride, the major extracellular anion, closely follows sodium metabolism, with fluctuations in acid-base balance reflected in chloride concentrations.

Pharmacokinetics

Saline is administered intravenously or through other routes depending on clinical needs. Once in the body, sodium and chloride are distributed in the extracellular fluid compartment. The elimination of sodium occurs primarily through renal excretion, while chloride follows similar pathways. The pharmacokinetic properties can vary based on the concentration of the saline solution and the physiological state of the patient.

Pregnancy

Saline is generally considered safe for use during pregnancy, but its use should be justified based on the clinical situation.

Breast-feeding

Saline is considered safe to use during breastfeeding, as it is not expected to affect the milk or nursing infant.

Storage

Store at room temperature, away from light and moisture. Do not freeze.

Formulations

• 0.9% Sodium Chloride Injection
• 20% Sodium Chloride Injection

Indications

• Weight management
• Nutritional supplementation
• Bone health support
• Muscle recovery

Dosage

Children: Refer to dietary guidelines and consult a healthcare professional for personalized recommendations.

Adults: Refer to dietary guidelines and consult a healthcare professional for personalized recommendations.

Mechanism of action

Skimmed milk does not have a specific pharmacological mechanism of action as it is a food product; however, its nutritional components, such as proteins and calcium, play roles in muscle repair, bone health, and overall metabolic functions in the body.

Pharmacodynamics

The consumption of skimmed milk leads to the absorption of its nutrients, which may impact various physiological processes. The proteins in skimmed milk can stimulate muscle protein synthesis, while calcium is critical for maintaining bone density and supporting cardiovascular health. Additionally, the presence of lactose can provide energy, though it may not be suitable for individuals with lactose intolerance.

Pharmacokinetics

The absorption and metabolism of skimmed milk occur primarily in the gastrointestinal tract. Nutrients are digested and absorbed into the bloodstream, where they are transported to various tissues. The rate of absorption can vary based on individual digestive health, and factors such as the presence of other foods can influence the bioavailability of the nutrients.

Pregnancy

Safety during pregnancy has not been established. Consult healthcare provider.

Breast-feeding

Consult healthcare provider before use during breastfeeding.

Storage

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

Indications

• Bacterial infections
• Viral infections
• Epidemiological studies
• Antibiotic resistance monitoring

Dosage

Children: Refer to specific antimicrobial treatment guidelines based on the strain identified and the infection site.

Adults: Refer to specific antimicrobial treatment guidelines based on the strain identified and the infection site.

Mechanism of action

The mechanism of action for a strain depends on the type of microorganism it represents. For pathogenic bacteria, the strain may produce toxins, evade the host's immune response, or possess resistance mechanisms that allow it to survive in the presence of antibiotics. For viruses, strains may exhibit mutations that alter their ability to infect host cells or evade antiviral therapies.

Pharmacodynamics

Pharmacodynamics in the context of strains involves the interaction between the strain and the host's immune system, as well as the effects of specific antimicrobial agents on the strain. These interactions can influence the efficacy of treatments and the development of resistance.

Pharmacokinetics

Pharmacokinetics is not directly applicable to strains themselves but rather to the drugs used to treat infections caused by specific strains. Factors such as absorption, distribution, metabolism, and excretion of antimicrobial agents can vary depending on the strain's characteristics and the site of infection.

Pregnancy

There is limited information on the safety of strain in pregnancy. It is advisable to consult healthcare professionals for guidance.

Breast-feeding

Safety during breastfeeding is not well established. It is recommended to seek medical advice before use.

Storage

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

Indications

• Influenza
• HIV/AIDS
• Hepatitis B and C
• Herpes simplex virus infections
• Cytomegalovirus infections
• COVID-19
• Respiratory syncytial virus infections

Dosage

Children: Refer to specific antiviral agents for dosing guidance.

Adults: Refer to specific antiviral agents for dosing guidance.

Mechanism of action

Viruses infect host cells by attaching to specific receptors on the cell surface. Once inside, they hijack the host cell's machinery to replicate their genetic material and produce viral proteins. New viral particles are assembled and released from the host cell, often destroying the cell in the process. The specific mechanism can vary depending on the virus type, including integration into the host genome in retroviruses or utilizing specific pathways for replication.

Pharmacodynamics

The pharmacodynamics of antiviral agents depend on the specific virus and the mechanism of action. Antiviral drugs may inhibit viral entry into host cells, block viral replication, or prevent the assembly of new virions. The effectiveness of antiviral therapy often relates to the stage of viral replication and the immune response of the host.

Pharmacokinetics

Pharmacokinetics of antiviral drugs varies widely based on the specific medication used. Generally, antiviral agents are absorbed through the gastrointestinal tract and distributed throughout the body. They may undergo hepatic metabolism and are often excreted through the kidneys. The half-life of these drugs can range from a few hours to several days, influencing dosing schedules.

Mechanism of action

Sodium and chloride - major electrolytes of the fluid compartment outside of cells (i.e., extracellular) - work together to control extracellular volume and blood pressure. Disturbances in sodium concentrations in the extracellular fluid are associated with disorders of water balance. Intra-amniotic instillation of 20% sodium chloride injection induces abortion and fetal death. Although the mechanism has not been conclusively determined, some studies indicate that the drug's abortifacient activity may be mediated by prostaglandins released from decidual cells damaged by hypertonic solutions of sodium chloride. Hypertonic sodium chloride-induced uterine contractions are usually sufficient to cause evacuation of both the fetus and placenta; however, abortion may be incomplete in 25-40% of patients. /20% injection/

Pharmacodynamics

Sodium, the major cation of the extracellular fluid, functions primarily in the control of water distribution, fluid balance, and osmotic pressure of body fluids. Sodium is also associated with chloride and bicarbonate in the regulation of the acid-base equilibrium of body fluid. Chloride, the major extracellular anion, closely follows the metabolism of sodium, and changes in the acid-base balance of the body are reflected by changes in the chloride concentration.