Warnings 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. When using this product avoid alcoholic beverages and other drugs that cause drowsiness drowsiness will occur use caution when driving a motor vehicle or operating machinery. Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers or any other sleep aid. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center (1-800-222-1222) right away. Stop use and ask a doctor if sleeplessness persists continuously for more than 2 weeks. Insomnia may be a symptom of a serious underlying medical illness. Ask a doctor before use if you have a breathing problem such as asthma, emphysema, or chronic bronchitis glaucoma heart disease difficulty in urination due to enlargement of the prostate gland.