Best GLP-1 programs of 2026
Fourteen telehealth providers our peptides.io editorial team reviewed for clinician support, pricing transparency, eligibility, and compliance. Compounded GLP-1 medications are not FDA-approved — talk to your doctor.
Common Questions
Where is peptides.io available?
How much weight will I lose?
What is the difference between Semaglutide and Tirzepatide?
Is this a subscription?
What side effects may occur?
GLP-1 medications, whether FDA-approved brand-name or compounded formulations, can cause side effects. Commonly reported side effects may include:
- Nausea (often most pronounced when starting or increasing the dose)
- Vomiting
- Diarrhea
- Constipation
- Abdominal discomfort
- Headache
- Fatigue
These side effects are often most noticeable during the initial weeks of treatment and during dose escalation periods. Many users report that side effects diminish as their body adjusts to the medication through a gradual titration process.
