Acute - (Acute)

Of abrupt or recent onset, in reference to a disease

Antidepressant - (an-ti-de-pres-sant)

Drug used to relieve or prevent depression

Chronic - (chron-ic )

Being long-lasting and recurrent in nature; characterized by long standing suffering

Purgative - (per-gay-tive)

A medicine that stimulates evacuation of the bowels.