1. Isosorbide mononitrate, the major active metabolite of isosorbide dinitrate, is an organic nitrate used to prevent angina.
2. It exerts its effect by relaxing vascular smooth muscles resulting in dilatation of peripheral arteries and veins.
藥動學
[Absorption]
Tmax: 3 to 4 hours (extended-release)
Bioavailability: 80% to 100% (extended-release)
Effect of food: No significant effect
[Excretion]
Fecal: About 1%
Renal: 93% to 96%, 2% unchanged
Dialyzable: Yes (hemodialysis); No (peritoneal dialysis)
[Elimination Half Life]
5 hours
禁忌症
Allergy to isosorbide mononitrate
Concomitant use of phosphodiesterase inhibitors used to treat erectile dysfunction, such as sildenafil, tadalafil, or vardenafil
Concomitant riociguat use (soluble guanylate cyclase stimulator)
懷孕分類
B [FDA]
哺乳分類
Infant risk cannot be ruled out. [MDX]
副作用
[Central nervous system] Headache (13% to 35%)
劑量和給藥方法
[Stable angina; Prophylaxis]
(Initial, extended-release): 30 to 60 mg PO QD
(Maintenance, extended-release): 120 to 240 mg PO QD
小兒調整劑量
Safety and efficacy have not been established in pediatric patients.
腎功能調整劑量
Adjustment not necessary.
Hemodialysis: Additional dose not necessary.
Peritoneal dialysis: Adjustment not necessary.
肝功能調整劑量
Adjustment not necessary.
安定性
Store at a controlled room temperature between 20 and 25 degrees C. Protect from excessive moisture.