Less effective & less tolerated than PPI’s

Cimetidine:- Short duration of action; Enzyme inhibiror, increases plasma concentration of co-administrated drugs; Crosses BBB & produce CNS effects (confusion, headache, hallucinations); Increases plasma prolactin level, cause menstrual irregularities & galactorrhoea in women, gynaecomastia, oligospermia & impotence in men.

Other adverse effects:

Constipation, diarrhea, dry skin, tinnitus, nausea, vomiting etc.


Pharmacology 4th Ed: Tara V Shanbhag, Smita Shenoy

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