Unisom Nighttime Sleep Aid 32 Tablets. Doxylamine Succinate. Fall asleep fast. Safe. Proven effective. Just one tablet per dose. Helps to reduce difficulty in falling asleep. Directions: Adults and children 12 years of age and over: Take 2 at bedtime if needed or as directed by a doctor. Keep this and all drugs out of the reach of children. In case of accidental overdose, seek professional assistance or contact a poison control center immediately. Prompt medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms. As with any drug, if you are pregnant or nursing a baby, seek the advice of a health professional before using this product. Do not give to children under 12 years of age or use for more than 10 days unless directed by a doctor. WARNINGS: Keep out of reach of children. Alcohol Warning: If you consume 3 or more alcoholic drinks every day, ask your doctor whether you should take acetaminophen or other pain relievers/fever reducers. Acetaminophen may cause liver damage. Do not use: In children under 12 years of age with other diphenhydramine products, even one used on skin with any other products containing acetaminophen. Taking more than directed can cause liver damage. Ask a doctor before use if you have: Glaucoma, A breathing problem such as emphysema or chronic bronchitis, trouble urinating due to an enlarged prostate gland, You are taking sedatives or tranquilizers.