Hi, I had gone through your question and understand your concerns. Usually not give below 6 months , you have not mentioned doses given , may cause constipation and sedation , I do not think it is going to cause any major side effect ( except in high doses ) , if have done self- medication , stop it and consult your paediatrician. Hope this answers your question. If you have additional questions then please do not hesitate in writing to us. *Always check for history of allergy before taking any medicine. •     DISCLAIMER: - All the information provided here is for information purpose only , it is not a substitute for the advice of a physician after physical examination , it is not intended to replace your relationship with your doctor. This information in no way establishes a doctor-patient relationship. Before acting anything based on this information do consult your doctor. I recommend that online users seek the advice of a physician who can perform an in-person physical examination