Fighting cold and flu symptoms around-the-clock, with a day and a night capsule, SUDAFED^® Mucus Relief Day & Night Capsules are specially formulated to tackle blocked noses, headaches, fevers, sore throats, and all the aches and pains associated with the common cold. The Day capsules include a dose of caffeine to combat tiredness while you fight off illness. The Night capsules soothe your symptoms, meaning you can get a good night’s sleep which can help you recover.