Research

Hormonal

Women metabolize zolpidem significantly slower than men, resulting in 50% higher serum levels and increased risk of next-day impairment, necessitating a halved recommended dosage for women.

If you are a woman prescribed zolpidem (Ambien), ensure your doctor prescribes the lower, FDA-recommended dose (typically 5mg). This is because your body clears the drug more slowly than men's, leading to higher levels in your blood and a higher risk of next-day drowsiness or impairment. Do not assume the standard male dose is appropriate for you.

GoodSupportsHIGH confidence
This change in dosing was based on the discovery that women metabolized the same dose of zolpidem slower than men resulting in 50% higher serum levels.
Monica P. Mallampalli et al. · Journal of Women s Health · 2014

Why this rating

Based on a cited study (Ref 23) regarding pharmacokinetics, supported by FDA action, though the paper itself is a review.

Source

Exploring Sex and Gender Differences in Sleep Health: A Society for Women's Health Research Report

Monica P. Mallampalli et al. · Journal of Women s Health · 2014

DOI 10.1089/jwh.2014.4816

narrative_reviewCited 489×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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