When using this product - avoid alcoholic beverages, drowsiness will occur, do not drive a motor vehicle or operate machinery. Stop use and ask a doctor if sleeplessness persists continuously for more than 2 weeks. Insomnia may be a symptom of serious underlying medical illness. Do not use - with any other product containing diphenhydramine, even one used on skin, for children under 12 years of age, with other drugs that cause drowsiness such as antihistamines and nighttime cold/flu products, with other nighttime products. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. Overdose warning: taking more than directed can cause serious health problems. In case of overdose, get medical help or contact a poison control center right away. (1-800-222-1222). Ask a doctor before use if you have - a breathing problem such as emphysema or chronic bronchitis, glaucoma, difficulty in urination due to an enlargement of the prostate gland, ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers.