Their drug, Trevogrumab, inhibits myostatin, where there is pre-clinical data that shows muscle gain
R., Tian, L., Deng, F., Swanson, M., & Mu, L
When you're conducting research, you must be able to trust that your variable is just the peptide, not a cocktail of unknown chemicals
The active ingredient is the same but in some cases the dosage may be different
This CNS-mediated pro-sexual mechanism is mechanistically upstream of, and independent from, the nitric oxide/cGMP/PDE5 pathway targeted by sildenafil (Viagra), tadalafil (Cialis), and other PDE5 inhibitors which act at the vascular/penile smooth muscle level as downstream effectors of a pre-existing arousal signal