What will happen if i accidentally took two 54 mg concerta pills?

You may be more: focused or calm than usual or may experience the zombie-effect of over-medication for a few hours. Some may become agitated and irritable. Report your experience to your prescriber. Dosing Concerta requires monitoring of effect to achieve best results for focus, function, and tolerability. 2x54 mg unlikely to cause overdose symptoms of vomiting, confusion, rapid heart rate, hallucinations, etc.

Headache: anxiety, inability to sleep, loss of appetite, elevated blood pressure, tachycardia, all lasting about 12 hours followed by exhaustion.