Monopront (Isosorbide Mononitrate)

Isosorbide mononitrate, the active ingredient in Monopront, is a organic nitrate presented as an oral tablet for oral use. It is used to treat chronic stable angina and heart failure in adult patients. GNH USA supplies Monopront as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Monopront belongs to the organic nitrate class and is employed in the management of ischemic heart disease and heart failure. - Chronic stable angina: reduces the frequency and severity of angina attacks by improving myocardial oxygen supply. - Heart failure: alleviates symptoms such as dyspnea and fatigue by decreasing cardiac preload and afterload. - Ischemic heart disease: helps prevent episodes of chest pain through sustained vasodilation.

Isosorbide mononitrate may cause a range of adverse reactions, most of which are dose‑related and transient.

Common Side Effects: - Headache: often described as throbbing and may improve with continued therapy. - Dizziness or light‑headedness, especially on standing. - Flushing of the face or upper torso. - Nausea or mild gastrointestinal upset. - Palpitations or tachycardia. - Hypotension: mild drop in blood pressure.

Serious or Rare Side Effects: - Severe hypotension leading to syncope. - Acute myocardial infarction in susceptible patients. - Life‑threatening allergic reactions (anaphylaxis, rash, swelling). - Methemoglobinemia, a rare blood disorder. - Persistent or worsening chest pain despite therapy. - Unexplained fainting episodes.

Before initiating therapy, clinicians should consider several safety factors. - Dose titration: start with a low dose and increase gradually to minimise hypotension. - Renal impairment: adjust dosing or monitor renal function closely. - Hepatic impairment: use with caution; monitor liver enzymes. - Concomitant nitrate therapy: avoid due to additive vasodilatory effects. - Pregnancy and lactation: safety not established; weigh risks and benefits. - Store at room temperature: keep in the original container, protect from moisture and light.

Isosorbide mononitrate can interact with several drug classes, requiring careful management.

Major Interactions (Avoid): - Other nitrates (e.g., nitroglycerin): may cause profound hypotension. - Phosphodiesterase‑5 inhibitors (e.g., sildenafil, tadalafil): risk of severe blood pressure drop. - Sodium nitrite: increased risk of methemoglobinemia.

Moderate Interactions (Monitor Closely): - Antihypertensives (ACE inhibitors, beta‑blockers, calcium channel blockers): additive blood‑pressure‑lowering effect. - Diuretics: may enhance orthostatic hypotension. - Alcohol: can increase dizziness and vasodilatory responses.