What is the brand name for Isosorbide mononitrate (Imdur) / dinitrate (Isordil)?
The most common brand name for Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is Imdur / Isordil.
PTCE Top 200 · #125
Isosorbide mononitrate (Imdur) / dinitrate (Isordil)
Imdur / Isordil
Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is the generic name for the brand-name drug Imdur. It is a nitrate (antianginal) used to treat angina (prophylaxis). On the PTCE Top 200 drug list, Isosorbide mononitrate (Imdur) / dinitrate (Isordil) ranks #125 and is one of the most frequently tested cardiovascular medications — commonly quizzed on its brand–generic pair, drug class, and key side effects.
| Generic name | Isosorbide mononitrate (Imdur) / dinitrate (Isordil) |
|---|---|
| Brand name(s) | Imdur / Isordil |
| Drug class | Nitrate (antianginal) |
| Class group | Cardiovascular |
| Common use | angina (prophylaxis) |
| DEA schedule | Unscheduled |
| Availability | Prescription only (Rx) |
What is Isosorbide mononitrate (Imdur) / dinitrate (Isordil) used for?
Prevention of angina pectoris due to coronary artery disease (long-acting nitrate).
What drug class is Isosorbide mononitrate (Imdur) / dinitrate (Isordil)?
Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is a Nitrate (antianginal) in the Cardiovascular group. Knowing the class is the fastest way to predict its uses, side effects, and the brand↔generic pairs the PTCE tests.
Common side effects of Isosorbide mononitrate (Imdur) / dinitrate (Isordil)
- arrow_rightHeadache
- arrow_rightDizziness
- arrow_rightHypotension
- arrow_rightFlushing
- arrow_rightNausea
Major interactions
- arrow_rightPDE-5 inhibitors (sildenafil, tadalafil, vardenafil) → severe hypotension (contraindicated)
- arrow_rightRiociguat → profound hypotension (avoid/contraindicated)
- arrow_rightAlcohol/other vasodilators → additive hypotension
Is Isosorbide mononitrate (Imdur) / dinitrate (Isordil) a controlled substance?
No. Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is not a federally controlled substance (it is unscheduled by the DEA).
How to remember Isosorbide mononitrate (Imdur) / dinitrate (Isordil) (PTCE mnemonic)
IM-dur is IM-mediate-DURable angina relief — isosorbide is a nitrate — MONOnitrate (Imdur) is once-daily; DInitrate (Isordil) is BID/TID with an SL form for acute angina. Headache common; NITRATE-FREE 10-12hr daily (prevents tolerance); NEVER with PDE5 → fatal hypotension.
lightbulb
PTCE exam tip
Nitrates need a daily nitrate-FREE interval to prevent tolerance — and combining any nitrate with a PDE5 inhibitor like sildenafil is the contraindication the exam always tests.
Isosorbide mononitrate (Imdur) / dinitrate (Isordil) FAQ
What is Isosorbide mononitrate (Imdur) / dinitrate (Isordil) used for?
Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is used to treat angina (prophylaxis). Prevention of angina pectoris due to coronary artery disease (long-acting nitrate).
What drug class is Isosorbide mononitrate (Imdur) / dinitrate (Isordil)?
Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is a Nitrate (antianginal) (Cardiovascular group).
Is Isosorbide mononitrate (Imdur) / dinitrate (Isordil) a controlled substance?
No. Isosorbide mononitrate (Imdur) / dinitrate (Isordil) is not a federally controlled substance (it is unscheduled by the DEA).
Related drugs in the Cardiovascular group
Drill Isosorbide mononitrate (Imdur) / dinitrate (Isordil) the way the PTCE asks it
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Last reviewed June 25, 2026. Educational use only — not medical advice. Verify clinical specifics with your pharmacist or a current label source such as DailyMed. RxReflex is not affiliated with or endorsed by the Pharmacy Technician Certification Board (PTCB).