Starpress - Xl 25 MG Tablet XL is a prescription medicine for hypertension, angina, and other heart conditions. It contains metoprolol as the active ingredient and has various dosage, contraindication, and interaction information. Starpress XL 25 Tablet belongs to a group of medicines called long-acting beta-blocker. Starpress XL 25 Tablet works by blocking the effects of some chemicals on your heart and blood vessels. It slows down your heart rate and helps it to beat with less force. Starpress XL 25mg Tablet 15'S is used to manage Hypertension. Find Starpress XL 25mg Tablet 15'S uses, substitutes, side effects, composition, directions for use, drug interactions, precautions and buy online at best price. How Starpress -H Tablet IR works Starpress-H 25 XL Tablet is a combination of two blood-pressure lowering medicines: Metoprolol Succinate and Hydrochlorothiazide. Metoprolol Succinate is a beta blocker which works specifically on the heart to reduce heart rate and make the heart more efficient at pumping blood throughout the body.