LONG-TERM THERAPEUTIC EFFICACY WITH ONCE-DAILY ISOSORBIDE-5-MONONITRATE (IMDUR®)

Once daily therapy with isosorbide-5-mononitrate causes endothelial dysfunction in humans: evidence of a free-radical-mediated mechanism.

OBJECTIVES The aim of the study was to determine if isosorbide-5-mononitrate (IS-5-MN) 120 mg, taken once daily for 7 days, is associated with evidence of endothelial dysfunction and whether this effect is determined by increased free radical production. BACKGROUND Tolerance to nitroglycerin is associated with increased free radical production and abnormal endothelial function. To date, no da...

Simultaneous measurement of plasma isosorbide dinitrate, isosorbide-2-mononitrate, and isosorbide-5-mononitrate by gas-liquid chromatography.

Effect and mechanism of action of isosorbide-5-mononitrate.

Nitrates have been shown to decrease portal pressure in cirrhotic patients with portal hypertension and this has been attributed to decreased portal venous resistance. We studied the effect and mechanism of action of oral administration of isosorbide-5-mononitrate (Is-5-Mn) (20 mg), which, unlike the dinitrate, does not require hepatic biotransformation to a vasoactive metabolite on portal and ...

Long-term safety and efficacy of tadalafil 5 mg dosed once daily in men with erectile dysfunction.

INTRODUCTION With once-daily administration of tadalafil, dosing and sexual activity would no longer need to be temporally linked for patients with erectile dysfunction (ED). AIM To evaluate long-term safety and efficacy of tadalafil 5 mg dosed once daily for the treatment of ED. METHODS Patients > or = 18 years of age with ED of any functional severity or etiology received tadalafil 5 mg o...

Preserved endothelial function after long-term eccentric isosorbide mononitrate despite moderate nitrate tolerance.

OBJECTIVES We sought to investigate the effects of orally administered, long-term, eccentric isosorbide mononitrate (ISMN) on endothelial function. BACKGROUND Previous studies have shown that nitrate tolerance induced by continuous transdermal glyceryl trinitrate (GTN) is associated with increased vascular superoxide production and endothelial dysfunction. In contrast, it is unclear whether v...