Month: January 2018

Anticancer drugs MCQs

  1. Anticancer drugs weaken host defence by: A. Damaging respiratory and gut epithelia B. Inducing granulocytopenia C. Altering resident microbial flora D. Both ‘A’ and ‘B’ are correct Answer: [  D  ]   2. Practically all antineoplastic drugs can produce the following toxic effects except: A. Depression of leucocyte count B. Mucositis C. Cardiomyopathy […]

Antimicrobial Drugs MCQs

  1. Choose the antimicrobial which acts by interfering with DNA function in the bacteria: A. Chloramphenicol B. Ciprofloxacin C. Streptomycin D. Vancomycin ANSWER: [   B   ]   2. Which antibiotic is primarily bacteriostatic but becomes bactericidal at higher concentrations: A. Erythromycin B. Tetracycline C. Chloramphenicol D. Ampicillin ANSWER: [   A   ]   3. Select […]

General Pharmacology MCQs

1. A receptor which itself has enzymatic property is (a) Insulin receptor (b) Progesterone receptor (c) Thyroxine receptor (d) Glucagon receptor ANSWER: [  a  ] 2. Glomerular filtration of a drug is affected by its (a) Lipid solubility (b) Plasma protein binding (c) Degree of ionization (d) Rate of tubular secretion ANSWER: [  b  ] […]

DRUGS ACTING ON AUTONOMIC GANGLIA

  GANGLIONIC STIMULANTS Agents that mimic neural transmission by stimulation of the nicotinic receptors on postganglionic autonomic neurons. Drugs that indirectly augment ganglionic transmission by increasing the release or slowing the breakdown of acetylcholine 1. Selective nicotinic agonists: a. Natural alkaloids: Nicotine Lobeline b. Synthetic drugs: Dimethylphenyl piperazinium iodide (DMPP) Tetramethyl ammonium Varenicline   2. […]

ANTICHOLINERGIC DRUGS

            Anticholinergics are drugs that block the action of acetylcholine. They block acetylcholine from binding to its receptors on certain nerve cells. They inhibit parasympathetic nerve impulses. These nerve impulses are responsible for involuntarily muscle movements in the gastrointestinal tract, lungs, urinary tract, and other parts of your body. The nerve impulses help control functions such as salivation, […]

CHOLINERGIC DRUGS

These are the drugs which produce actions same as acetylcholine, either by directly acting with cholinergic receptors or by increasing availability of Ach at the sites. They are also called as cholinomimetics or parasympathomimetics. There are two types of Cholinergic drugs they are cholinergic agonists and anticholinesterases. 1. CHOLINERGIC AGONISTS a) Choline esters: Acetylcholine Methacholine Carbachol […]

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