Prozac

Prozac belongs to the class of drugs called selective serotonin re-uptake inhibitors (SSRIs). Serotonin is one of the chemical messengers believed to govern moods. Ordinarily, it is quickly reabsorbed after its release at the junctures between nerves. Re-uptake inhibitors such as Prozac slow this process, thereby boosting the levels of serotonin available in the brain.

Most important fact about Prozac

Serious, sometimes fatal, reactions have been known to occur when Prozac is used in combination with other antidepressant drugs known as MAO inhibitors, including Nardil and Parnate; and when Prozac is discontinued and an MAO inhibitor is started. Never take Prozac with one of these drugs or within at least 14 days of discontinuing therapy with one of them; and allow 5 weeks or more between stopping Prozac and starting an MAO inhibitor. Be especially cautious if you have been taking Prozac in high doses or for a long time.

In addition, Prozac should never be combined with thioridazine (Mellaril) due to the risk of life-threatening drug interactions; and a minimum of 5 weeks should be allowed between stopping Prozac and starting Mellaril.

If you are taking any prescription or nonprescription drugs, notify your doctor before taking Prozac.

How should you take Prozac?

Prozac should be taken exactly as prescribed by your doctor.

Prozac usually is taken once or twice a day. To be effective, it should be taken regularly. Make a habit of taking it at the same time you do some other daily activity.

It may be 4 weeks before you feel any relief from your depression, but the drug's effects should last about 9 months after a 3-month treatment regimen. For obsessive-compulsive disorder, the full effect may take 5 weeks to appear.

--If you miss a dose...

Take the forgotten dose as soon as you remember. If several hours have passed, skip the dose. Never try to "catch up" by doubling the dose.

--Storage instructions...

Store at room temperature.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Prozac.

• More common side effects may include:
  Abnormal dreams, abnormal ejaculation, abnormal vision, anxiety, diarrhea, diminished sex drive, dizziness, dry mouth, flu-like symptoms, flushing, gas, headache, impotence, insomnia, itching, loss of appetite, nausea, nervousness, rash, sex-drive changes, sinusitis, sleepiness, sore throat, sweating, tremors, upset stomach, vomiting, weakness, yawning