For research and educational purposes only. Not medical advice.
S-40503 Reference
Educational, not medical advice reference for S-40503: SARM, Bone; regulatory status, evidence posture, source review, and schedule notes. Also known as S405…
Reference summary
Published evidence is animal-only, mainly rat osteoporosis-model work suggesting bone-anabolic activity without prostate stimulation. Human evidence is absent.
- Categories
- SARM, Bone
- Aliases
- S40503, Bone-anabolic SARM, Non-steroidal SARM
- Evidence posture
- preclinical — Animal-only bone SARM prototype. Human osteoporosis, fracture, or performance benefit has not been shown. WADA-prohibited; no FDA approval.
- Regulatory status
- No FDA-approved S-40503 drug label. FDA consumer warnings against SARMs sold in bodybuilding products apply to the class. WADA prohibits SARMs under category S1.2 anabolic agents at all times.
- Content review status
- research reference