Some of the more hazardous side effects of adderall: • Dangerous increase in blood pressure • Tachycardia or a high pulse rate • Irregular heart rate • Difficulty breathing • Chest pain • Allergic reaction that includes swelling and redness in the eyes or throat • Migraine headaches • Syncope or losing consciousness • Blurry or double vision • Seizure activity and excessive and uncontrollable shaking • Extreme nervousness and paranoid delusions • Mood swings that include hostility and severe aggression • Depression