Question

The drug cimetidine was designed to
(The question has multiple correct options)
$a.$ Prevent the interaction of histamine with a receptor.
$b.$ Stimulates the secretion of pepsin.
$c.$ Reduce gastro intestinal juice.
$d.$ All of the above.

Answer 1

Hint: Cimetidine is an anti-ulcer drug which was developed by Smith, Kline and French laboratories in Welwyn Garden city over a $12$ year period. The brand name of cimetidine is Tagamet $HB$ .The molecular formula of Cimetidine is ${C _{10}}{H_{16}}{N_6}S$ . Its molecular mass is $252.34g/mol$ .

Complete step by step answer:
Cimetidine is an antihistamine drug. It competitively inhibits the action of histamine and prevents the interaction of histamine with the receptor located on gastric cells. This competitive inhibition results in reduced gastric acid secretion.
Thus, we can say that the drug cimetidine was designed to prevent the interaction of histamine with the receptor and reduce gastro intestinal juice. So the option $A$ and $B$ is true.
$1.$ Side effect of cimetidine: Common effects of cimetidine include headache, dizziness, sleepiness, enlarged breasts in men and so on.
$2.$ Cautions: may cause feminization and sexual dysfunction in males. Cimetidine use may be acceptable during pregnancy
Cimetidine enters breast milk, therefore it is not recommended for use when breastfeeding.
$3.$ Warning: This medication contains cimetidine. Do not take Tagamet $HB$ if you are allergic to cimetidine or any ingredients contained in this drug.
$4.$ Cimetidine is used to treat ulcers; gastroesophageal reflux diseases , a condition in which backward flow of acid from the stomach causes heartburn and injury of the food pipe (esophagus), and condition where the stomach produces too much acid, such as Zollinger-Ellision syndrome.

Note: Cimetidine is a type of antihistamine drug that blocks the release of stomach acid $\left( {HCl} \right)$. It is used to treat stomach or intestinal juice. It can relieve ulcer pain and discomfort. Always use cimetidine as directed by the physicians.