At greater than authorized dosages or after long-term treatment, hypomania and agitation have also been recorded. In schizophrenia patients, Nardil may produce excessive stimulation; in manic-depressed individuals, it may result in a swing from a depressive to a manic phase. There has been at least one report of a patient developing psychosis while taking Nardil. Nardil may cause dry mouth and drowsiness. These effects are usually mild but may be enough to prevent someone from driving if they take the drug regularly. Dry mouth can be cured by drinking more water and drowsiness can be counteracted by taking a brisk walk each day. Nardil may increase blood pressure and heart rate. Therefore, it is not recommended for people who are already affected by hypertension or heart disease. A small number of users have reported symptoms similar to those seen with recreational drugs use, including anxiety, confusion, depression, irritability, memory problems, rapid heartbeat, shortness of breath, and suicidal thoughts or actions. These reactions are likely due to imitation cocaine or its metabolites. As with any other drug, if you experience any symptoms that include feelings of panic or discomfort plus suicidal thoughts or behaviors, then stop taking Nardil immediately and call your doctor.