Caffeine - Prochlorperazine Interaction Details

Interaction Details

Prochlorperazine is classified as belonging to the following category: Phenothiazines

Theoretically, phenothiazines might increase the levels and adverse effects of caffeine.
Phenothiazines, including perazine, chlorpromazine, levomepromazine, and thioridazine, can reduce the metabolism of caffeine by inhibiting cytochrome P450 1A2 (CYP1A2).

Interaction Rating

Minor

Likelihood of Occurrence

Possible

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists

References

Wojcikowski, J. and Daniel, W. A. Perazine at therapeutic drug concentrations inhibits human cytochrome P450 isoenzyme 1A2 (CYP1A2) and caffeine metabolism--an in vitro study. Pharmacol Rep. 2009;61(5):851-858.
Daniel, W. A., Syrek, M., Rylko, Z., and Kot, M. Effects of phenothiazine neuroleptics on the rate of caffeine demethylation and hydroxylation in the rat liver. Pol.J Pharmacol 2001;53(6):615-621.

Prochlorperazine Overview

Prochlorperazine suppositories and tablets are used to control severe nausea and vomiting. Prochlorperazine tablets are also used to treat the symptoms of schizophrenia (a mental illness that causes disturbed or unusual thinking, loss of interest in life, and strong or inappropriate emotions). Prochlorperazine tablets are also used on a short-term basis to treat anxiety that could not be controlled by other medications. Prochlorperazine should not be used to treat any condition in children who are younger than 2 years old or who weigh less than 20 pounds (about 9 kilograms). Prochlorperazine is in a class of medications called conventional antipsychotics. It works by decreasing abnormal excitement in the brain.

See More Information Regarding Prochlorperazine

Caffeine - More Interactions

Caffeine interacts with 643 drugs

Interaction Rating Key

These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.

Major	The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur.
Moderate	Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur.
Minor	Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction.
Unknown	No interactions have been reported or no interaction data is currently available.