Lavestra

Losartan potassium, the active ingredient in Lavestra, is an Angiotensin II receptor blocker presented as a tablet for oral use. It is used to manage high blood pressure and related cardiovascular conditions in adults.

GNH USA supplies Lavestra as a licensed, GDP-compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Losartan potassium works by blocking the angiotensin II pathway, helping to lower blood pressure and protect the heart and kidneys.

- Hypertension: reduces systolic and diastolic pressure to achieve target blood pressure levels. - Heart failure: improves cardiac output and reduces hospitalizations. - Diabetic nephropathy: slows progression of kidney damage by lowering intraglomerular pressure.

Losartan is generally well tolerated, but patients may experience a range of adverse reactions.

Common Side Effects: - Dizziness: mild to moderate light‑headedness, especially after standing. - Headache: tension‑type headache occurring early in therapy. - Fatigue: feeling of tiredness without obvious cause. - Nasal congestion: mild blockage of nasal passages. - Back pain: occasional musculoskeletal discomfort.

Serious or Rare Side Effects: - Angioedema: swelling of face, lips, tongue, or throat requiring immediate medical attention. - Hyperkalemia: elevated potassium levels that can affect heart rhythm. - Acute kidney injury: sudden decline in renal function, especially in patients with pre‑existing kidney disease. - Severe hypotension: marked drop in blood pressure causing fainting. - Liver injury: abnormal liver enzymes indicating hepatic stress.

Before initiating therapy, clinicians should evaluate patient‑specific factors and monitor for potential risks.

- Monitor blood pressure: adjust dose to maintain target levels. - Assess renal function: check serum creatinine and eGFR periodically. - Check electrolytes: especially potassium, to avoid hyperkalemia. - Use caution in hepatic impairment: dose may need adjustment. - Avoid in patients with known hypersensitivity to losartan or other ARBs. - Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Losartan may interact with several drug classes, influencing efficacy or safety.

Major Interactions (Avoid): - ACE inhibitors: combined use can increase risk of angioedema and renal impairment. - Potassium‑sparing diuretics or supplements: may cause dangerous hyperkalemia. - Aliskiren (in pregnancy): heightened risk of fetal toxicity. - Lithium: losartan can raise lithium concentrations, leading to toxicity. - NSAIDs: may diminish antihypertensive effect and impair renal function.

Moderate Interactions (Monitor Closely): - Thiazide diuretics: may enhance initial blood‑pressure‑lowering effect. - Rifampin: can reduce losartan plasma levels, decreasing efficacy. - CYP2C9 or CYP3A4 inhibitors (e.g., fluconazole): may increase losartan exposure. - Anticoagulants (e.g., warfarin): monitor INR as losartan may affect anticoagulation control.