Nitroglycerin PO

  • Brand Name :
  • Drug Class : Nitrates, Angina
  • Medical Author : Divya Jacob, Pharm. D.
  • Medical Reviewer : Sarfaroj Khan, BHMS, PGD Health Operations
  • _eael_post_view_count : 11

What Is Nitroglycerin PO and How Does It Work?

Nitroglycerin PO is a prescription medication used for the prevention of angina pectoris.

Nitroglycerin PO is available under the following different brand names: Glyceryl trinitrate PO

What Are Dosages of Nitroglycerin PO?

Adult dosage

Capsule, extended-release 

  • 2.5mg
  • 6.5mg
  • 9mg

Angina Pectoris (Prophylaxis)

Adult and geriatric dosage

  • ER capsule: Initial 2.5-6.5 mg orally every 6-8 hours.

Dosage Considerations – Should be Given as Follows: 

  • See “Dosages”

What Are Side Effects Associated with Using Nitroglycerin PO?

Common side effects of Nitroglycerin PO include:

  • headache,
  • dizziness,
  • numbness,
  • tingling, and
  • burning pain.

Serious side effects of Nitroglycerin PO include:

  • severe or throbbing headaches,
  • pounding heartbeats,
  • fluttering in the chest,
  • slow heart rate,
  • lightheadedness,
  • blurred vision,
  • dry mouth,
  • chest pain or pressure,
  • pain spreading to the jaw or shoulder,
  • nausea, and
  • sweating

Rare side effects of Nitroglycerin PO include:

  • none 

This is not a complete list of side effects and other serious side effects or health problems that may occur as a result of the use of this drug. Call your doctor for medical advice about serious side effects or adverse reactions. You may report side effects or health problems to FDA at 1-800-FDA-1088.

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