Drowsiness, impaired coordination, memory impairment, dry mouth. Brand names include Xanax, Klonopin, Valium and Ativan.

Selective serotonin reuptake inhibitors (SSRIs)

Nausea, diarrhea, sexual dysfunction, insomnia, fatigue. Brand names include Celexa, Prozac, Luvox, Paxil and Zoloft.

Buspirone (BuSpar)

Dizziness, nausea, headache, nervousness, dysphoria.

Tricyclic antidepressants

Drop in blood pressure when standing, sedation, dry mouth, constipation, urinary retention, blurred vision, dizziness, weight gain. Brand names include Anafranil, Pamelor, and Tofranil.

Venlafaxine (Effexor)

Nausea, constipation, somnolence, dry mouth, dizziness, sweating, nervousness, fast heart rate, hypertension, and sexual dysfunction.