Ginkgo Biloba and Antidepressant-Associated Sexual Dysfunction
Sexual dysfunction is a well-recognized side effect of many antidepressant medications. Symptoms may include reduced desire, difficulty with arousal, impaired orgasm, or reduced satisfaction.
A study published in the Journal of Sex & Marital Therapy (April–June 1998; 24(2):139–143) examined the use of ginkgo biloba extract in patients experiencing antidepressant-associated sexual dysfunction. This was an open-label trial involving 30 men and 33 women.
Among the female participants, 91% reported improvements in one or more aspects of sexual function, including desire, arousal (lubrication in women, erection in men), orgasm, and afterglow. Among male participants, 76% reported improvement. Because the study lacked a placebo control, the results were considered preliminary and hypothesis-generating rather than definitive.
Proposed Mechanism and Later Research
Subsequent research has explored possible mechanisms by which ginkgo biloba might influence sexual function. Ginkgo has been shown in some studies to increase nitric oxide availability and improve peripheral blood flow. Nitric oxide plays a central role in vascular relaxation, including the blood vessel changes involved in sexual arousal and erection.
Under normal circumstances, sexual arousal triggers signals from the brain that cause blood vessels in erectile tissue to dilate, increasing blood flow. Blood becomes temporarily trapped within specialized chambers (the corpora cavernosa), allowing an erection to occur. Disruption of this process can lead to erectile dysfunction.
While this vascular mechanism offers a plausible explanation for why ginkgo might influence sexual function, later studies have produced inconsistent results. Some trials have used small sample sizes, lacked rigorous controls, or failed to replicate earlier findings.
A major systematic review published in the Avicenna Journal of Phytomedicine (2021;11(4):324–331) concluded that there is insufficient high-quality evidence to support more than limited benefit of ginkgo biloba for sexual dysfunction. The authors noted methodological weaknesses across many studies and emphasized the need for better-designed clinical trials.
Inconsistant Doesn’t Mean “Doesn’t Work”
When research findings are described as “inconsistent,” this often reflects differences between individuals rather than a lack of effect. An approach like ginkgo biloba would be expected to help primarily when sexual dysfunction is related to impaired blood flow or nitric oxide signaling. If those mechanisms are not involved, benefit would not be expected.
Many studies are designed to look for treatments that work for everyone with a given diagnosis. In doing so, strategies that may support specific biological processes—and help some individuals—can be overlooked. From a process-oriented perspective, the key issue is whether an intervention matches the underlying mechanism in a particular person, not whether it works universally.
