Which of the following compounds is not an antacid

Which of the following compounds is not an antacid?

  1. Cimetidine
  2. Phenelzine 
  3. Ranitidine
  4. Aluminium hydroxide

Solution

Antacids are the medicines which neutralize the excess acid present in the stomach.

Phenelzine is anti-depressant.

The correct option is B.