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You are here: Home / Archives for pharmacology

pharmacology

Pharmacology MCQs- 297

by Dr Ray Makar Leave a Comment

Q- Extrapyramidal side effects develop after the use of haloperidol due to its effect on which of the following receptors? A- Alpha-adrenergic receptors B- Dopamine receptors C- Muscarinic receptors D- Nicotinic receptors Q- Which of the following is the main action of carbidopa when it is used in combination with levodopa in the management of […]

Filed Under: Pharmacology MCQs Tagged With: pharmacology, repeated usmle questions, usmle, usmle questions, usmle step 1

Pharmacology MCQs- 296

by Dr Ray Makar Leave a Comment

Q- Drug-to-drug interaction based on absorption, transformation, distribution and excretion is considered which one of the following types of interaction? A- Chemical interaction B- Pharmaceutical interaction C- Pharmacodynamic interaction D- Pharmacokinetic interaction Q- The effect of medications on parasympathetic function declines slowly in which one of the following organs? A- Eye B- Glands C- Heart […]

Filed Under: Pharmacology MCQs Tagged With: pharmacology, repeated usmle questions, usmle, usmle questions, usmle step 1

Pharmacology MCQs- 295

by Dr Ray Makar 2 Comments

Q- Which one of the following anti-Parkinsonism medications should be avoided in patients with glaucoma? A- Bromocriptine B- Levodopa C- Selegiline D- Trihexyphenidyl Q- Which one of the following intravenous anesthesia has antiemetic action? A- Fentanyl B- Ketamine C- Propofol D- Thiopental Q- Interferon alpha is indicated for the treatment of which one of the […]

Filed Under: Pharmacology MCQs Tagged With: pharmacology, repeated usmle questions, usmle, usmle questions, usmle step 1

Pharmacology MCQs- 294

by Dr Ray Makar Leave a Comment

Q- Which of the following is NOT an adverse effect of aspirin? A- Bleeding B- Gastritis C- Renal problems D- Tolerance Q- Which one of the following medications is a non-selective beta receptor agonist? A- Ephedrine B- Epinephrine C- Isoproterenol D- Phenylephrine Q- Torsades de pointes may occur after the use of which one of […]

Filed Under: Pharmacology MCQs Tagged With: pharmacology, repeated usmle questions, usmle, usmle questions, usmle step 1

Pharmacology MCQs- 293

by Dr Ray Makar Leave a Comment

Q- Which one of the following drugs is the most fatal in suicidal overdose? A- Bupropion B- Citalopram C- Imipramine D- Phenelzine Q- Which of the following medications is used in opioid overdose? A-Flumazenil B- Naloxone C- Norepinephrine D- Phencyclidine Q- Amoxicillin inhibits which one of the following enzymes? A-Beta lactamase B- Squalene epoxidase C- […]

Filed Under: Pharmacology MCQs Tagged With: pharmacology, repeated usmle questions, usmle, usmle questions, usmle step 1

Pharmacology MCQs- 292

by Dr Ray Makar 2 Comments

Q- Which of the following is the mechanism of action of selegiline in treating Parkinson’s disease? A- Agonist at dopamine receptors B- Blocks catechol-O-methyltransferase (COMT) C- Inhibition of MAO type B to reserve dopamine D- Precursor of dopamine Q- Which of the following is the mechanism of action of zileuton for asthma? A- Inhibition of […]

Filed Under: Pharmacology MCQs Tagged With: pharmacology, repeated usmle questions, usmle, usmle questions, usmle step 1

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