SUDAFED MUCUS RELIEF DAY & NIGHT X16(PACK) 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.