I get random premature ventricular contractions (PVCs) and have for years. They typically only last a few minutes to a few hours, and only 1-2 a minute max. Since starting semaglutide, I've experienced much more frequent PVCs within a day or two after injecting. Although I'm on a lower dose now, last night (a day after injecting), I was experiencing basically nonstop PVCs followed by frequent but not constant PVCs, which made me feel dizzy and like I couldn't get a full breath.

Although arrythmia isn't listed as a side effect in the trials, on the meds, my experience and anecdotal evidence from online message boards leads me to believe that at least some of us definitely get an arrythmia from the medication. I think more instances of this will come out the longer the drug is on the market.