Generic name: nortriptylene (nor-TRIP-till-ene)
Clinical uses: treatment of depression, panic disorder, and PMS
Chemical formula: C19H21N
Possible side-effects: confusion, sleepiness, impotence, dry mouth, constipation, hypertension, change in weight, change in libido
Aventil is an older antidepressant that's often used in people who do not benefit from SSRIs or atypical antidepressants like Wellbutrin. It's also a mild sedative, so doctors sometimes prescribe it to depressed patients who suffer from insomnia or early waking.