Extra Strength SINUTAB® Day/Night Caplets provide relief from sinus pain, headache, and congestion. Use the daytime caplets for non-drowsy relief during the day and the nightime caplets for relief of symptoms to let you rest. Both the day and night formulas contain acetaminophen to relive sinus pain and headache, and pseudoephedrine hydrochloride to relieve nasal congestion. The nightime caplet also contains the antihistamine diphenhydramine hydrochloride to relieve itchy, watery eyes. This package includes 24 caplets: 18 Extra Strength SINUTAB® Sinus Non-Drowsy Daytime Caplets and 6 Extra Strength SINUTAB® Sinus Nightime Caplets.