It is generally very safe and highly recommended to get your vaccines while taking Telista H (telmisartan/hydrochlorothiazide) for your blood pressure. This medication will not interfere with how the vaccine works, nor will the vaccine affect your blood pressure control. As a simple precaution, try to stay well-hydrated before and after your vaccination, as Telista H contains a mild diuretic. You might experience common, temporary side effects like a sore arm or mild fever, which are normal signs your body is building immunity. Please share your medication list with your vaccine provider, and continue taking your blood pressure medicine as prescribed.