xanax side effects definition
Side effects are often observed at the beginning of therapy and usually disappear upon continued use of medication. Possible side effects of Xanax include: 4,6. 1  Drowsiness. 2  Light-headedness. 3  Low energy. 4  Depression. 5  Headache. 6  Confusion. 7  Insomnia. 8  Nervousness. 9  Fainting. 10  Dizziness. 11  Restlessness. 12  Fatigue/tiredness. 13  Impaired coordination. 14  Irritability. 15  Memory impairment.