I accidentally grabbed the wrong medicine bottle & gave my 30 lb. 19 month old son a full tsp. of Bromfed instead of the recommended 1/4 tsp. I gave him milk hoping it will help, buy Gould I take him to the Dr.

Does he show any symptoms of overdosing? You should contact the poison control center or the emergency room for advise. 4 times the recommended dosage is a lot and I would call the poison control center even if he shows no symptoms of overdoes, just to be sure.

http://answers.webmd.com/answers/1026141/what-should-i-do-if-i
If overdose is suspected, contact your local poison control center or emergency room immediately. US residents can call the US national poison hotline at 1-800-222-1222. Canadian residents should call their local poison control center directly. Symptoms of overdose may include: agitation, confusion, flushing, hallucinations, large pupils, muscle twitching, seizures. In children, excitement may occur first, and may be followed by loss of coordination, drowsiness, loss of consciousness, seizures.