Isosorbide Mononitrate Dosage
This dosage information may not include all the information needed to use Isosorbide Mononitrate safely and effectively. See additional information for Isosorbide Mononitrate.
The information at Drugs.com is not a substitute for medical advice. ALWAYS consult your doctor or pharmacist.
Usual Adult Dose for:
Additional dosage information:
Usual Adult Dose for Angina Pectoris Prophylaxis
30-60 mg (Imdur) orally once a day or
20 mg (ISMO) orally twice a day or
10-20 mg (Monoket) orally twice a day.
Usual Adult Dose for Congestive Heart Failure
30-60 mg (Imdur) orally once a day or
20 mg (ISMO) orally twice a day or
10-20 mg (Monoket) orally twice a day.
Renal Dose Adjustments
No adjustment recommended
Liver Dose Adjustments
No adjustment recommended
Dose Adjustments
After several days, the dose of Imdur may be increased to 120 mg.
An initial 5 mg dose for Monoket might be appropriate for persons of a small stature. This dose should be increased to at least 10 mg by the second or third day.
Precautions
Severe hypotension can occur following administration of isosorbide mononitrate, even in small doses.
Safety and effectiveness have not been established in pediatric patients (less than 18 years of age).
Dialysis
Data not available
Other Comments
Usual twice a day dosing (for ISMO and Monoket) is administered upon arising and 7 hours later. The Imdur dose should be taken once a day upon arising each morning. The maximum recommended dose of Imdur is 240 mg/day.
The presence of food does not significantly alter the absorption or bioavailability of Monoket.
See also...
- Isosorbide consumer information
- Isosorbide mononitrate Side Effects
- Isosorbide mononitrate Drug Interactions
- Imdur (isosorbide mononitrate) tablet, extended release dosage information
- Imdur (isosorbide mononitrate) consumer information
- Ismo (isosorbide mononitrate) tablets dosage information
- Monoket (isosorbide mononitrate) tablet dosage information

