1,2,3-trinitroxypropane 1,3-dinitrooxypropan-2-yl nitrate propane-1,2,3-triyl trinitrate
急性心絞痛發作時，最好休息並採取坐姿服用。
Absorption
Rapid.
Distribution
Vd is 3 L/kg. Protein binding is approximately 60% (parent); 1,2 dinitroglycerin, 60%; 1,3 dinitroglycerin, 30%.
Metabolism
Primarily metabolized in the liver by nitrate reductase; known sites of extrahepatic metabolism include red blood cells and vascular walls. Metabolized to inorganic nitrate and the active 1,2 and 1,3 dinitroglycerols.
Elimination
Serum t ½ is 3 min and 1 to 8 min (sublingual). Cl is 1 L/kg/min.
Onset
1 to 2 min (IV), 1 to 3 min (sublingual), 1 h (extended-release).
Peak
1 to 4 h (immediate-release tablet), 6 to 7 min (sublingual), 2 h (transdermal).
Duration
3 to 5 min (IV), 30 to 60 min (sublingual), 5 h (extended-release), up to 12 h (topical ointment).
Alcohol
Severe hypotension and CV collapse may occur.
Alteplase
Concurrent administration decreases thrombolytic effects of alteplase.
Aspirin
Vasodilatory and hemodynamic effects of nitroglycerin may be enhanced.
Calcium channel blockers
Symptomatic orthostatic hypotension may occur.
Dihydroergotamine
May increase systolic BP and decrease antianginal effects.
Heparin
May decrease anticoagulation effect when used in conjunction with IV nitroglycerin.
Phosphodiesterase type 5 inhibitors (eg, sildenafil, tadalafil, vardenafil)
Because the hypotensive effects of nitrates may be potentiated, concomitant use of any form of organic nitrates is contraindicated in patients receiving phosphodiesterase type 5 inhibitors.
2. 本品由口腔及舌下服用，不可咬碎，切記勿吞服，如發生視力模糊或口乾現象即須停藥。
3. 過量投與Nitroglycerin會引起嚴重頭痛，不可與Viagra併用。
