Telmisartan is given orally. After a dose the hypotensive effect peaks within 3 hours and persists for at least 24 hours. The maximum hypotensive effect occurs within about 4 to 8 weeks after starting therapy.
In hypertension, Telmisartan is given in an initial dose of 40 mg once daily. Lower doses should be considered in patients with hepatic or renal impairment.