Nitrovas

Nitroglycerin (Ointment) ·Popular Pharmaceuticals PLC·Ointment

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Packages & prices

Pack	Price	Details
30 gm tube	৳	30 gm tube: BDT 130.50

Administration

Nitroglycerin 0.4% ointment should be inserted into the anal cavity with an applicator.The ointment must be inserted at least 1 cm into the anus.The dose is to be applied intra-anally every twelve hours. Treatment may be continued until the pain abates,up to a maximum of 8 weeks.

Effects

Headache and dizziness is a common side effect experienced with Nitroglycerin 0.4% ointment. A possible side effect is reduced control over bowel movements and leaking of bowel motions although this is expected to be a rare event.

Accidental overdose may result in hypotension and reflex tachycardia. Because the hypotension associated with nitroglycerin overdose is the result of venodilation and arterial hypovolaemia, prudent therapy in this situation should be directed toward increasing central fluid volume. Excessive dosage may also give rise to methaemogiobinaemia. This should be treated with methylene blue infusion.

Indications

The ointment will help to relieve the symptom of pain caused by chronic anal fissures.

Pharmacology

The principal pharmacologic action of glyceryl trinitrate is mediated via the release of nitric oxide. When glyceryl trinitrate ointment is applied by the intra-anal route,the internal anal sphincter becomes relaxed.Hypertonicity of the internal but not the external anal sphincter is a predisposing factor in the formation of anal fissures.

Precautions

Nitroglycerin 0.4% ointment should be used with caution in patients who have severe hepatic or renal disease.It should not be used if patient suffers from severe anemia, glaucoma, hypotension, increased intracranial pressure.