All Free Pharmacology MCQs with Answers

• A. Aspirin
• B. Penicillinium
• C. Amino epsilon caproic acid
• D. Dipheny 1 hydantoin

Explanation: Aspirin irreversibly inhibits platelet cyclooxygenase and impairs primary haemostasis, so it can worsen bleeding in haemophilia.

• A. Tranexamic acid
• B. Clopidogrel
• C. Aminocarproic Acid
• D. Factor VIII cryoprecipitate

Explanation: Clopidogrel inhibits platelet aggregation and would increase postoperative bleeding, offering no therapeutic benefit in haemophilia.

• A. Warfarin sodium
• B. Sodium oxalate
• C. Heparin
• D. Phenindone

Explanation: Heparin is preferred during pregnancy because it does not cross the placenta, whereas warfarin crosses the placenta and can cause fetal…

• A. Pregnancy
• B. Nephrotic syndorme
• C. Newborn
• D. Liver disease
• E. Both A & B

Explanation: Pregnancy and nephrotic syndrome can reduce the apparent effect of oral anticoagulants because both are associated with a hypercoagulable…

• A. Rifampicin
• B. Amoxycillin
• C. Erythromycin
• D. Tetracycline

Explanation: Rifampicin induces hepatic drug-metabolising enzymes and increases warfarin breakdown, thereby shortening its anticoagulant effect and…

• A. Protamine sultate
• B. Vitamin K
• C. Factor VIII
• D. EADA

Explanation: Protamine sulfate is a positively charged antidote that binds and neutralises the negatively charged heparin molecule.

• A. Valproic acid.
• B. Carbamazepine.
• C. Ethosuximide.
• D. Phenytoin

Explanation: Long-term phenytoin therapy may cause gingival hyperplasia, hirsutism, coarse facial features, and vitamin-D-related osteomalacia.

• A. Phenobarbital.
• B. Meprobamate
• C. Chlordiazepoxide
• D. Triazolam
• E. Zolpidum

Explanation: Phenobarbital induces hepatic microsomal enzymes, increasing the metabolism of warfarin and other drugs and potentially reducing their…

• A. Zolpidem
• B. Buspiron.
• C. Midazolam
• D. Triazolam
• E. Phenobarbital

Explanation: Buspirone is a non-sedating anxiolytic used specifically for long-term treatment of generalized anxiety disorder.

• A. Cough suppression
• B. Anti-emesis
• C. Miosis
• D. Truncal rigidityPain Management

Explanation: Opioids commonly cause nausea and vomiting rather than anti-emesis, although they do produce cough suppression, miosis, and sometimes…

• A. Natrexone
• B. Nalbuphine
• C. Butorphanol
• D. Pentazonice

Explanation: Naltrexone, misspelled in the options as “Natrexone,” is a pure opioid receptor antagonist.

• A. Zolmitriptan
• B. Zileuton
• C. Zolpiden
• D. Zalcitabine

Explanation: Zolpidem is a short-acting non-benzodiazepine sedative-hypnotic used for insomnia.

• A. Alprazolam
• B. Diazepam
• C. Buspiron
• D. Phenobarbital

Explanation: Buspirone relieves generalized anxiety through serotonin 5-HT1A mechanisms and does not act directly on the GABAergic system.

• A. Aspirin
• B. Phenytoin
• C. Chloromphenicol
• D. Cyclosporine

Explanation: Long-term phenytoin therapy can impair folate absorption or metabolism, producing folic acid deficiency and sometimes megaloblastic…

• A. Acetaminophen
• B. Acetylsalicylic acid
• C. Phenylbutazone
• D. NaproxenConsult Online Doctors

Explanation: Acetaminophen provides analgesia without significantly inhibiting platelet function, making it safer in a hemophiliac than aspirin or…

• A. Nicotinic cholinergic receptors
• B. Glutamate receptors
• C. GABA receptors
• D. Glucocorticoid receptors

Explanation: GABA receptor activation increases inhibitory neurotransmission in the brain, reducing neuronal excitability and anxiety.

• A. patients having fever
• B. patients having asthma
• C. patients having amoebic dysentery
• D. Patient having bronchitisGet Study Guides

Explanation: Ibuprofen can precipitate bronchospasm in patients with aspirin-sensitive asthma because cyclooxygenase inhibition shunts arachidonic acid…

• A. 1 ml / min
• B. 2.5 ml / min
• C. 1 mg / min
• D. 2.5 mg / min

Explanation: Intravenous diazepam should be administered slowly, commonly at no more than about 1 mL per minute, to reduce respiratory and…

• A. 1 min
• B. 2 min
• C. 3-5 min
• D. 10 minBook Pain Specialists

Explanation: Succinylcholine has an ultra-short action because it is rapidly hydrolysed by plasma pseudocholinesterase, with muscle relaxation usually…

• A. Peptic ulcer
• B. Person suffering form chicken pox or small pox
• C. Hemorrhage
• D. All of the above

Explanation: Aspirin increases gastrointestinal bleeding and is contraindicated in peptic ulcer disease or active haemorrhage; it should also be…