When using this product drowsiness will occur avoid alcoholic drinks do not drive a motor vehicle or operate machinery. Ask a doctor before use if you have liver disease glaucoma a breathing problem such as emphysema or chronic bronchitis trouble urinating due to an enlarged prostate gland. Ask a doctor or pharmacist before use if you are taking the blood thinning drug warfarin taking sedatives or tranquilizers. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. Overdose warning: In case of overdose, get medical help or contact a Poison Control Center right away (1-800-222-1222). Quick medical attention is critical for adults as well as for children even if you do not notice any signs or symptoms. 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. pain gets worse or lasts more than 10 days fever gets worse or lasts more than 3 days redness or swelling is present new symptoms occur These could be signs of a serious condition. if you have ever had an allergic reaction to this product or any of its ingredients.