Anril
Topical Spray
Square Pharmaceuticals Ltd.Generic:
NitroglycerinWeight:
400 mcg/spraybest Price:
? 270.00Generic
Nitroglycerin
Pharmacology
The principal pharmacological action of nitroglycerin is relaxation of vascular smooth muscle, producing a vasodilator effect on both peripheral arteries and veins with more prominent effects on the latter. Dilation of the post-capillary vessels, including large veins, promotes peripheral pooling of blood and decreases venous return to the heart, thereby reducing left ventricular enddiastolic pressure (pre-load). Arteriolar relaxation reduces systemic vascular resistance and arterial pressure (after-load).
Dosage Administration
At the onset of an attack, 1 or 2 metered sprays should be administered under the tongue. No more than 3 metered sprays are recommended within a 15 minute period. If the chest pain persists, prompt medical attention is recommended. Nitroglycerin spray may be used prophylactically 5 to 10 minutes prior to engaging in activities which might precipitate an acute attack.
Contraindications
Hypersensitivity to nitrates or any constituents of the formulation. Hypotension, hypovolaemia, severe anaemia, cerebral haemorrhage and brain trauma, mitral stenosis and angina caused by hypertrophic obstructive cardiomyopathy. Concomitant administration of phosphodiesterase inhibitors used for the treatment of erectile dysfunction.
Side Effects
A number of nitrate related adverse effects may occur including headache, facial flushing, dizziness, nausea, vomiting, feelings of weakness, postural hypotension and reflex tachycardia .
Pregnancy And Lactation
Pregnancy Category C. There are no adequate and well controlled studies in pregnant women. Nitroglycerin should be given to pregnant women only if clearly needed. It is not known whether nitroglycerin is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Nitroglycerin spray is administered to a nursing woman.
Therapeutic
The use of Nitroglycerin during the early days of acute myocardial infarction requires particular attention to monitoring hemodynamics and clinical status. Nitroglycerin should be used with caution in patients with severely impaired renal or hepatic function, hypothyroidism, malnutrition or hypothermia.
Storage Conditions
Safety and effectiveness of nitroglycerin in pediatric patients have not been established.
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