Sudafed Decongestant Tablets 12s Non-drowsy Sudafed Decongestant Tablets are used for the relief of a blocked nose, or sinuses, & catarrh associated with colds, flu & allergies. Ingredients Active ingredient: Pseudoephedrine hydrochloride (60 mg). Other ingredients: Lactose, microcrystalline cellulose, maize starch, silica, magnesium stearate, hypromellose, polyethylene glycol, talc & red iron oxide (E172) Directions For oral use. Adults & children 12 years & over: Take 1 tablet with a glass of water every 4-6 hours. Do not take more than 4 tablets in 24 hours. Children under 12 years: Not recommended.