Valproic Acid Metabolism and its Consequences on Sexual Functions

Area of Science:

• Endocrinology
• Neuropharmacology
• Reproductive Medicine

Background:

• Valproic acid (VPA) is a widely used antiepileptic drug (AED) for generalized epilepsies.
• Emerging evidence suggests VPA may be linked to increased reproductive and endocrine abnormalities in women compared to other AEDs.

Purpose of the Study:

• To review the impact of VPA on sexual and reproductive health in men and women.
• To investigate the mechanisms underlying VPA-induced endocrine and metabolic disturbances.

Main Methods:

• A comprehensive literature search was conducted using PubMed.
• Keywords included "VPA metabolism," "VPA and sexual functions in men/women," and "VPA metabolism and endocrine disorders."
• The search covered a 20-year period.

Main Results:

• VPA is associated with hyperandrogenism, PCOS, and menstrual irregularities in women.
• Men on VPA may experience altered androgen levels, reduced sperm motility, and erectile dysfunction.
• VPA affects hormone release (LH, FSH, prolactin) and peripheral endocrine hormones, potentially increasing testosterone and related steroids.
• VPA-induced obesity and hyperinsulinemia can exacerbate sexual dysfunction.

Conclusions:

• VPA significantly interferes with the endocrine system, leading to reproductive and sexual dysfunctions in both sexes.
• These effects are particularly concerning when VPA is initiated during puberty.
• Physicians must actively monitor patients on long-term VPA therapy for early detection of these adverse effects.