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Posology: The usual recommended initial and maintenance dose is 150 mg once daily, with or without food. Irbesartan Tablets at a dose of 150 mg once daily generally provides a better 24-hour blood pressure control than 75 mg. However, initiation of therapy with 75 mg could be considered, particularly in haemodialysed patients and in the elderly over 75 years. In patients insufficiently controlled with 150 mg once daily, the dose of Irbesartan Tablets can be increased to 300 mg, or other antihypertensive agents can be added. In particular, the addition of a diuretic such as hydrochlorothiazide has been shown to have an additive effect with Irbesartan Tablets.
In hypertensive type 2 diabetic patients, therapy should be initiated at 150 mg Irbesartan once daily and titrated up to 300 mg once daily as the preferred maintenance dose for treatment of renal disease. The demonstration of renal benefit of Irbesartan Tablets in hypertensive type 2 diabetic patients is based on studies where Irbesartan was used in addition to other anti-hypertensive agents, as needed, to reach target blood pressure.
Special Populations: Renal impairment: No dosage adjustment is necessary in patients with impaired renal function. A lower starting dose (75 mg) should be considered for patients undergoing haemodialysis.
Intravascular volume depletion: Volume and/or sodium depletion should be corrected prior to administration of Irbesartan Tablets.
Hepatic impairment: No dosage adjustment is necessary in patients with mild to moderate hepatic impairment. There is no clinical experience in patients with severe hepatic impairment.
Elderly patients: Although consideration should be given to initiating therapy with 75 mg in patients over 75 years of age, dosage adjustment is not usually necessary for the elderly.
Paediatric population: The safety and efficacy of Irbesartan in children aged 0 to 18 has not been established.
Route of Administration: Irbesartan Tablets should be taken orally with liquid, with or without food.
