- Your child may develop a skin rash or excessive sweating, which are considered to be mild side effects of Concerta; bruising or dark purple spots on the skin are serious side effects and require medical evaluation.
- Concerta may cause your child to develop neurological disorders, including numbness in the fingers and toes, headaches, dizziness and visual distortions.
- Children taking Concerta may have changes in their moods, such as increased aggression against other people and pets, restlessness and unusual behaviors.
- Concerta can cause interactions with other medications that your child may be taking, including cold medicines and antacids.
- If your child has symptoms of clinical depression, taking Concerta can increase the chance of suicidal thoughts or actions, especially in teenage children.
- If your child develops sudden chest pain, facial swelling, hives or difficulty breathing, these are serious symptoms that may become life threatening if left untreated.







