Unlike semaglutide and tirzepatide, which are FDA-approved medications that can be legally compounded during shortages, retatrutide has no FDA-approved version
Patients are also hearing about substances promoted for injury recovery, muscle development, sleep, immune support and longevity

References Nature Medicine (2014) Nicotinamide N-methyltransferase knockdown protects against diet-induced obesity View Source PMC (2024) Nicotinamide N-methyltransferase inhibition mitigates obesity-related metabolic dysfunctions View Source Frontiers in Pharmacology (2024) NNMT: a novel therapeutic target for metabolic syndrome View Source PubMed (2021) LC-MS/MS assay for 5-amino-1-methylquinolinium: pharmacokinetic and oral bioavailability study View Source ResearchGate (2021) Combined NNMT inhibition and reduced-calorie diet normalizes body composition in obese mice View Source PMC (2022) Reduced calorie diet combined with NNMT inhibition establishes a distinct microbiome in DIO mice View Source NMN.com / Scientific Reports Role of NNMT inhibition in muscle strength: enhanced grip strength with exercise View Source Swolverine 5-Amino-1MQ mechanism, benefits, stacking and cycling guide View Source PMC Subcutaneous drug injection review: pharmacologic considerations View Source CDC Vaccine administration: subcutaneous route (angle/site

In 2023, the FDA placed approximately 1719 peptides on the Category 2 restricted list citing safety concerns: potential carcinogenicity, immunogenicity risk, organ toxicity, and a lack of clinical trial data in humans