Research

Hormonal

Testosterone therapy improves erectile function and libido in men with documented testosterone deficiency, and may have synergistic effects when combined with phosphodiesterase-5 inhibitors in those who do not respond to either treatment alone.

If you are struggling with low sex drive or erectile dysfunction, ask your doctor to check your testosterone levels. If they are low, testosterone therapy can help. If you are already taking medication for ED (like Viagra) and it isn't working well, adding testosterone might improve the effect. Always discuss all your symptoms with your doctor.

LimitedSupportsMEDIUM confidence
Men with ED and/or diminished libido and documented testosterone deficiency are candidates for testosterone therapy... There is evidence suggesting therapeutic synergism with combined use of testosterone and phosphodiesterase-5 inhibitors in hypogonadal or borderline eugonadal men
C. Wang et al. · Journal of Andrology · 2008

Why this rating

Based on Level 2a evidence for TRT efficacy and Level 1b for combination therapy.

Source

Investigation, Treatment, and Monitoring of Late‐Onset Hypogonadism in Males: ISA, ISSAM, EAU, EAA, and ASA Recommendations

C. Wang et al. · Journal of Andrology · 2008

DOI 10.2164/jandrol.108.006486

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DOI resolved against Crossref · corpus check 2026-06-10

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