Fluphenazine Pharmacology

Fluphenazine is a high-potency typical antipsychotic that primarily acts as a dopamine D2 receptor antagonist in the mesolimbic pathway, reducing positive symptoms of schizophrenia. Extrapyramidal symptoms (EPS), such as dystonia, akathisia, and parkinsonism, are common due to potent D2 blockade in the nigrostriatal pathway. Neuroleptic malignant syndrome (NMS), though rare, is a life-threatening adverse effect characterized by rigidity, hyperthermia, altered mental status, and autonomic instability. CYP2D6 inhibitors (e.g., fluoxetine, paroxetine) can increase fluphenazine plasma concentrations, potentially raising the risk of toxicity and side effects. Concomitant use of fluphenazine with CNS depressants (e.g., alcohol, benzodiazepines) can enhance sedation and respiratory depression. Be sure to check out our free Top 200 study guide – a 31 page PDF that is yours for FREE! Support The Podcast and Check Out These Amazing Resources! NAPLEX Study Materials BCPS Study Materials BCACP Study Materials BCGP Study Materials BCMTMS Study Materials Meded101 Guide to Nursing Pharmacology (Amazon Highly Rated) Guide to Drug Food Interactions (Amazon Best Seller) Pharmacy Technician Study Guide by Meded101