Randomized Trialmoderate evidence
Effects of Clenbuterol on Body Composition and Strength Following Resistance Training, Detraining, and Retraining in Healthy Adults: A Randomized Controlled Trial.
Sports medicine (Auckland, N.Z.)·September 12, 2026·PMID 42730843
Why it mattersClenbuterol is used off-label for performance enhancement, but its long-term effects after cessation are poorly understood. This trial shows that gains during use are largely lost after stopping, with only partial strength retention, informing clinicians about the transient nature of benefits and potential risks of use.
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