Researchers historically have avoided using female animals in medical studies specifically so they don’t have to account for influences from hormonal cycles. This may explain why women often don’t respond to available medications or treatments in the same way as men do

Women’s hormones play role in drug addiction, higher relapse rates

Women’s hormonal cycles may not only make them more prone to drug addiction but also more affected by triggers that lead to relapse, a new Vanderbilt University study revealed. The findings are especially significant since there are virtually no addiction studies in women that account for these cycles.

Erin Calipari, an assistant professor of pharmacology in the Vanderbilt Center for Addiction Research, points out that women represent a particularly vulnerable population, with higher rates of addiction following exposure to drugs, but addiction studies have primarily focused on the mechanisms underlying these effects in men. Her study found that, when fertility-related hormone levels are high, females learn faster, make stronger associa… Continue Reading
Source: https://www.medicalxpress.com/news/2019-02-women-hormones-role-drug-addiction.html