Schizophrenia Home > Side Effects of Prochlorperazine
Side effects of prochlorperazine may include nasal congestion, drowsiness, and weight gain. Although side effects of this drug are mostly minor and don't require treatment, some side effects should be reported to a healthcare provider. Contact your healthcare provider if you develop any of these serious prochlorperazine side effects, which can include breast changes, high or low blood sugar, seizures, or an irregular heart rhythm.
As with any medicine, there are possible side effects with prochlorperazine maleate (Compazine®). However, not everyone who takes the medication will experience side effects. In fact, most people tolerate it well. When side effects do occur, in most cases they are minor and either require no treatment or can easily be treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with prochlorperazine. Your healthcare provider can discuss a more complete list of prochlorperazine side effects with you.)
Prochlorperazine has been studied thoroughly in clinical trials. In these studies, the side effects that occur in a group of people taking the drug are documented and are then compared to those that occur in another group of people not taking the medicine. This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.
In these studies, some possible prochlorperazine side effects included:
- Menstrual changes (especially missed periods)
- Blurred vision
- Dry mouth (see Compazine and Dry Mouth)
- Nasal congestion
- Ejaculation problems
- Impotence, also known as erectile dysfunction or ED (see Compazine Sexual Side Effects)
- Difficulty passing urine
- Sensitivity to the sun
- Increased appetite (and weight gain).
There have been reports that prochlorperazine may cause false positive pregnancy tests (a positive pregnancy test in an individual who is not pregnant).