Semaglutide and other GLP-1 medications work by activating receptors in the brain and gut that control appetite and blood sugarbut they also influence the body's temperature regulation system
Both are forms of the amino acid carnitine, but they differ in function
Oral tablets do not require the use of needles are typically taken daily can result in side effects such as nausea, vomiting, constipation, and abdominal pain must be taken on an empty stomach first thing in the morning, without eating for 30 minutes afterward Injections require the use of needles are typically taken once per week may cause side effects such as injection site reactions but may also cause nausea, vomiting, constipation, and abdominal pain can be taken regardless of whether you consume food or liquid beforehand or afterward You can inject semaglutide into your upper arm, thigh, or stomach
For those experiencing persistent issues, understanding semaglutide withdrawal symptoms provides context for what happens if you need to pause or discontinue
Regional Insights North America GLP-1 Receptor Agonist Market Trends North America dominates the GLP-1 receptor agonist market with a 41.8% share in 2025 , driven by the high prevalence of diabetes and obesity, coupled with strong healthcare infrastructure and widespread insurance coverage