It doesn't necessarily interact with levothyroxine specifically, but since levothyroxine is a thyroid hormone itself, taking it with ashwagandha has the potential to increase levels higher than anticipated
It also plays a role in your immune system and nerve function
Timing of administration relative to meals and activity has not been formally studied for BPC-157
GLP-1 drugs have been shown to be effective for weight loss, though they come with a number of side effects for some patients, including nausea, vomiting, headaches, diarrhea, and constipation, according to Harvard Medical School and the Cleveland Clinic
10.1186/s12931-016-0321-z 138 SalterB
Both versions of semaglutide are typically administered by drug titration, with incremental dose increases every 4 weeks as tolerated to a maximum of 2.4mg in a single dose