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Pharmacology MCQs- 283



Q- Which of the following is the most frequent and irreversible side effect of typical anti-psychotics?

A- Akathisia

B- Anxiety

C- Dystonia

D- Tardive dyskinesia

D- Tardive dyskinesia- It usually occurs after 2 years of using these drugs. It is devastating and irreversible.



Q- Which of the following is the mechanism of action of ursodiol to reduce the size of gallstones in the common bile duct?

A- Dissolving calcium from the stone

B- Dissolving cholesterol form the stone

C- Reducing bile synthesis

D- Relaxation of common bile duct

B- Dissolving cholesterol form the stone- Ursodiol is a bile acid helps break down cholesterol from stones in the gallbladder. It is secreted by the liver and absorbed in the intestine.



Q- Which of these substances should be taken before consumption of milk in a patient who complains of abdominal pain and cramping after drinking milk?

A- Acetaminophen

B- Aspirin

C- Lactase

D- Niacin

C- Lactase- This is most likely a case of lactose intolerance. Lactase may help before consumption of dairy products.



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