Cardiology · Long-acting nitrate
Isosorbide mononitrate
Dose
10–120 mg OD (asymmetric dosing to avoid tolerance).
Indications
- • Chronic angina prophylaxis
- • Adjunct in HF
Use
Second-line antianginal; ensure 10–14 h nitrate-free interval.
Monitoring
BP, symptoms.
Side effects
- • Headache
- • Postural hypotension
- • Reflex tachycardia
- • Tolerance
Related in WardRound
Always confirm dose against your local formulary / BNF before prescribing.
