Nitroglycerin (Glyceryl Trinitrate)


The drug is prescribed for the treatment of angina (decreased cardiac blood flow causing chest discomfort).

IUPAC Name: 1,3-nitrooxypropanol-2-yl nitrate

Drug Class: Nitrate Vasodilator

Related Articles

Route of administration: Oral, sublingual, transdermal patch, spray, intravenous

This is a prescribed drug and not an OTC Drug

Drug Action Mechanism 

This medication is short-acting nitrate. It functions by relaxing or widening the blood vessels, which lowers the heart’s need for oxygen and lessens the burden on the heart, avoiding angina (heart-related chest discomfort).    

Side Effects

It could result in lightheadedness, dizziness, nausea, headache, flushing, vision problems, and palpitations.


Before using this medication, take the following precautions and notify your doctor:

  • If the person is allergic to the drug or other nitrates, or if the person has other allergies,
  • If the person is taking any other medication (prescribed, non-prescribed, or herbal products),
  • If the person has or ever had a heart attack or other cardiac disanaemiaanemia (low red blood cells), increased pressure inside the skull, hypotension (low blood pressure), abnormally fast heart rate, head injury, dehydration, stomach cramps,
  • If the person has undergone any type of surgery i.e., eye or ear surgery, 
  • While taking this medication, limit alcohol usage since it increases the chances of developing blurred vision, dizziness, or drowsiness. It may also cause a loss of alertness.
  • Avoid abruptly discontinuing this medication without consulting the doctor. Otherwise, the person can get a serious angina attack.
  • The adverse effects of this medication may affect elder people more severely.
  • Anyone under the age of 18 years is not allowed to use this medication.
  • Consult a doctor if the person is pregnant or breastfeeding.

Show More

Related Articles

Leave a Reply

Back to top button