Losartan Potassium Tablets are the world's first angiotensin II receptor antagonist for treating hypertension. Multiple clinical studies have shown that Losartan Potassium effectively lowers blood pressure, reduces cardiovascular risks, and delays the progression of end-stage renal disease. This medication provides 24-hour potent blood pressure reduction, long-term stable blood pressure control, improved circadian blood pressure rhythm, and cardiovascular and renal protection, with a high safety profile. For most patients, the initial and maintenance dose is 50mg once daily. The maximum blood pressure-lowering effect is typically achieved within 3-6 weeks of treatment. Some patients may experience additional blood pressure reduction by increasing the dose to 100mg once daily. Adverse reactions to this medication are generally mild and transient, usually not requiring discontinuation of treatment. No initial dose adjustment is necessary for elderly patients or those with renal impairment, including those undergoing hemodialysis. Patients with a history of hepatic impairment should consider using a lower dose. This medication is contraindicated during pregnancy and breastfeeding.