Diphenhydramine HCl 25 mg. Antihistamine. Sneezing. Itchy, watery eyes. Runny nose. Itchy throat. Ultratabs (Small tablet size). Effective allergy relief when you need it! Questions or comments? Call 1-877-717-2824 (toll-free) or 215-273-8755 (collect). Child-resistant packaging. Active ingredient made in Japan. Other information: Each tablet contains: calcium 15 mg. Store between 20-25 degrees C (68-77 degrees F). Protect from light. Do not use if carton is opened or if blister unit is broken.