Bioassay of Oxytocin

of Bioassay of Oxytocin

Bioassay of Oxytocin: Commonly done using uterine contraction response in rats or guinea pigs. Bioassays of Oxytocin’s: Measures potency by comparing test sample to standard oxytocin. Principle of Bioassay of Oxytocin Oxytocin stimulates rhythmic contraction of uterine smooth muscle and also causes milk ejection. The bioassay relies on measuring the uterine contraction magnitude or frequency … Read more

Bioassay of Insulin

Bioassay of Insulin

Bioassay of Insulin: Ensures potency, efficacy, and standardization of insulin preparations. Bioassay of Insulin: Measures hypoglycemic activity using rabbit or mouse blood glucose levels. Principle of Bioassay of Insulin Insulin lowers blood glucose levels by promoting glucose uptake in peripheral tissues and inhibiting hepatic glucose output. The bioassay evaluates the hypoglycemic effect of a test … Read more

Lidocaine Hydrochloride

Lidocaine Hydrochloride

Lidocaine Hydrochloride is a class Ib anti-arrhythmic for acute ventricular arrhythmias, blocking sodium entry in heart cells. Structure of Lidocaine Hydrochloride Lidocaine hydrochloride is an amide-type local anesthetic with a diethylaminoethyl side chain attached to a 1,5-dimethyl-2-phenyl-4-imidazolidinone core. It exists as the hydrochloride salt to enhance solubility. Chemical Formula: C₁₂H₂₁N₃O · HCl Mode of Action … Read more

Phenytoin Sodium

Phenytoin Sodium

Phenytoin Sodium is a class Ib anti-arrhythmic used mainly for digitalis-induced arrhythmias by modulating sodium channels. Structure of Phenytoin Sodium It is a hydantoin derivative with a diphenylmethyl group attached to the hydantoin ring. It exists primarily in the sodium salt form to enhance solubility. Chemical Formula: C₁₀H₁₂N₂O₂Na Mode of Action Voltage-Gated Sodium Channel Blockade: … Read more

Disopyramide Phosphate

Disopyramide Phosphate

Disopyramide Phosphate is a class Ia anti-arrhythmic used in ventricular arrhythmias by stabilizing cardiac electrical activity. Structure of Disopyramide Phosphate Disopyramide phosphate is a class IA antiarrhythmic agent with a quinuclidine core structure. It features a dibenzodioxepin ring system linked to a quinuclidine moiety and a diethylamino group. Chemical Formula: C₂₀H₂₉N₃O₄S·H₃PO₄ Mode of Action Class … Read more

Procainamide Hydrochloride

Procainamide Hydrochloride

Procainamide Hydrochloride is a class Ia anti-arrhythmic that treats arrhythmias by blocking sodium channels and slowing impulses. Structure of Procainamide Hydrochloride Procainamide hydrochloride is a class IA antiarrhythmic agent structurally related to the local anesthetic procainamide. It contains an amide linkage with a diethylamino group and a phenyl ring. Chemical Formula: C₁₉H₃₀N₄O₂S·HCl Mode of Action … Read more

Quinidine Sulphate

Quinidine Sulphate

Quinidine Sulphate is a class Ia anti-arrhythmic used to treat atrial and ventricular arrhythmias by slowing heart conduction. Structure of Quinidine Sulphate Quinidine sulphate is a stereoisomer of quinine, belonging to the class IA antiarrhythmic agents. It features a quinoline structure with a stereocenter that distinguishes it from quinine. Chemical Formula: C₂₄H₂₉NO₄S Mode of Action … Read more

Anti-Arrhythmic Drugs

Anti-Arrhythmic Drugs

Anti-arrhythmic drugs correct irregular heartbeats by altering cardiac impulses to restore normal rhythm and heart function. Anti-arrhythmic drugs are medications used to treat and prevent abnormal heart rhythms (arrhythmias). These drugs work by modifying the electrical activity of the heart to restore and maintain a normal heart rhythm, thereby ensuring efficient blood circulation throughout the … Read more

Arrhythmia

Arrhythmia

Arrhythmia is an abnormal heart rhythm caused by irregular electrical activity, leading to a heartbeat that is too fast, too slow, or erratic. Definition of Arrhythmia: Arrhythmia is an irregular heart rhythm, causing the heart to beat too fast, too slow, or erratically, impacting its blood-pumping efficiency. Types of Arrhythmias: Tachycardia: Fast heart rate (>100 … Read more

Types of Bioassay

Types of Bioassay

Types of Bioassay: Include quantal, graded, and endpoint assays to measure drug effects. Types of Bioassay: Used to determine potency, efficacy, and standardization of drugs. Bioassays can be broadly classified based on the nature of the biological system used and the type of response measured. Types of Bioassay Graded Response Bioassay Measures the intensity of … Read more