Do not exceed 6 doses in 24 hours.
When using this product: may cause drowsiness or excitability; alcohol, sedatives, and tranquilizers may increase drowsiness; do not engage child in activities requiring mental alertness; side effects may include: allergic reaction, breathing difficulties, convulsions, drowsiness, hallucinations, and rapid heart rate; read the complete label prior to use and follow all label instructions; do not exceed recommended daily dose; overdose may result in serious harm.ca Pharmacist. Ask a doctor or pharmacist before use if the child has: heart or thyroid disease, high blood pressure, diabetes, asthma, glaucoma, chronic lung disease or other chronic lung conditions, difficulty in urination; is pregnant or breastfeeding; is taking other medications, including natural health products, prescription drugs or non-prescription drugs.