Research

Hormonal

Initiation of testosterone therapy (TT) in men under 65 years with a pre-existing history of heart disease is associated with a significantly increased risk of non-fatal myocardial infarction within the first 90 days of prescription.

If you are under 65 but have a history of heart disease, starting testosterone therapy significantly increases your risk of a heart attack in the first three months. This risk is nearly three times higher than baseline. You should discuss this specific risk with your doctor, who may recommend closer monitoring or alternative treatments.

ModerateSupportsMEDIUM confidence
In men under age 65 years, the RR was 2.90 (1.49, 5.62) for those with a history of heart disease
William D. Finkle et al. · PLoS ONE · 2014

Why this rating

Observational cohort study using administrative claims data; while large and using robust statistical methods (doubly robust estimation), it lacks the controlled conditions of an RCT.

Source

Increased Risk of Non-Fatal Myocardial Infarction Following Testosterone Therapy Prescription in Men

William D. Finkle et al. · PLoS ONE · 2014

DOI 10.1371/journal.pone.0085805

cohort · n=222872Cited 724×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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