What are the side effects of amphetamines?

See below. All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most common side effects persist or become bothersome when using amphetamine/dextroamphetamine: constipation; diarrhea; dizziness; dry mouth; headache; loss of appetite; nausea; nervousness; restlessness; stomach pain or upset; trouble sleeping; unpleasant taste; vomiting;.