GLP-1
GLP-1 medications and phentermine work through different pathways, but both can influence libido
If you typically inject in the abdomen and plan to be very active, consider using a thigh injection site instead, as it is less affected by waistband friction and movement
Men have even seen normalized sperm counts and improved erectile function when using GLP-1 RAs as part of a weight-loss or diabetes treatment planmdpi.commdpi.com
The salt form problem In September 2025, the FDA sent warning letters to more than 50 GLP-1 drug compounders and manufacturers
Drug choice, dose, and penetration : Differences among GLP-1 RAs in ability to affect the brain (bloodbrain barrier penetration, receptor binding, half-life, dosing) may influence outcomes