Ques. 1AIPMT 2011 (Prelims)
Which one of the following is employed as antihistamine?
- Chloramphenicol
- Diphenhydramine
- Norethindrone
- Omeprazole
Answer
(2) Diphenhydramine
Solution
Chloramphenicol – broad-spectrum antibiotic.
Diphenhydramine (Benadryl) – antihistamine; it blocks the binding of histamine to its receptors.
Norethindrone – synthetic progesterone derivative used as an antifertility drug.
Omeprazole – antacid (prevents the formation of acid in the stomach).
Answer: (2)
Out of syllabus