It's legitimate and necessary medicine for things like adjusting a dose for a child, removing an allergen, or making a liquid version of a pill for someone who can't swallow
Your 2mg weekly dose costs more to produce than a 0.5mg dose simply due to the quantity of semaglutide needed
The final approved doses and labeling will be determined by the FDA
Liraglutide and Renal Outcomes in Type 2 Diabetes
Botfield HF, Uldall MS, Westgate CSJ, Mitchell JL, Hagen SM, Gonzalez AM et al (2017) A glucagon-like peptide-1 receptor agonist reduces intracranial pressure in a rat model of hydrocephalus
Finally, one may ask whether the release of calcium cations via ryanodine receptors from the sarcoplasmic reticulum contributed to the positive inotropic effect of retatrutide