Maxon Active

Sildenafil, the active ingredient in Maxon Active, is a phosphodiesterase type 5 inhibitor presented as an oral tablet for oral use. It treats erectile dysfunction in adult males and is also indicated for pulmonary arterial hypertension. GNH USA supplies Maxon Active as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Sildenafil acts on the nitric‑oxide/cGMP pathway to improve vascular smooth‑muscle relaxation in specific disease states. - Erectile dysfunction: enhances the ability to achieve and maintain an erection during sexual stimulation. - Pulmonary arterial hypertension: improves exercise capacity and delays clinical worsening by lowering pulmonary vascular resistance.

Sildenafil may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects: - Headache: mild to moderate pain often occurring within hours of dosing. - Flushing: warmth and redness of the face or upper chest. - Dyspepsia: indigestion or upset stomach. - Nasal congestion: stuffy or runny nose. - Visual disturbances: blurred vision or a blue‑tinted visual field. - Back pain: muscular discomfort, typically after several hours.

Serious or Rare Side Effects: - Priapism: prolonged erection lasting more than four hours, requiring urgent medical care. - Sudden vision loss: non‑arteritic anterior ischemic optic neuropathy. - Sudden hearing loss: unexplained decrease in hearing acuity. - Myocardial infarction: heart attack, especially in patients with pre‑existing cardiovascular disease. - Stroke: cerebrovascular accident, particularly in high‑risk individuals. - Severe hypotension: marked drop in blood pressure, potentially leading to fainting.

Before initiating therapy, clinicians should evaluate cardiovascular status and review concomitant medications. - Cardiovascular assessment: ensure patient can tolerate sexual activity without undue risk. - Nitrate use: avoid concurrent use with nitrates or nitric‑oxide donors. - Alpha‑blocker co‑administration: use caution and monitor blood pressure. - Hepatic/renal function: adjust dosing in severe impairment. - Patient counseling: advise on timing of sexual activity relative to dose. - Store at below 25°C: keep in the original pack, protect from moisture.

Sildenafil interacts with several drug classes that can alter its efficacy or safety.

Major Interactions (Avoid): - Nitrates (e.g., nitroglycerin): may cause severe hypotension. - Nitric‑oxide donors (e.g., amyl nitrite): risk of dangerous blood‑pressure drop. - Guanylate cyclase stimulators (e.g., riociguat): additive vasodilatory effect. - Certain protease inhibitors (e.g., ritonavir): can markedly increase sildenafil levels. - Uncontrolled hypertension medications: may exacerbate blood‑pressure changes.

Moderate Interactions (Monitor Closely): - Alpha‑blockers: may cause additive hypotensive effect. - Antihypertensives (e.g., beta‑blockers): monitor for excessive blood‑pressure reduction. - Strong CYP3A4 inhibitors (e.g., ketoconazole): increase plasma concentration. - CYP3A4 inducers (e.g., rifampin): reduce effectiveness. - Other PDE5 inhibitors: avoid concurrent use to prevent toxicity.