Managing GI side effects on GLP-1 medicines
Also known as:
Nausea, constipation, diarrhea on semaglutide or tirzepatide
Practical ways to ease nausea, reflux and bowel changes, and when to call your clinician.
Written and reviewed by Farhan Tahir, MD · Last reviewed
VIDEO LESSON
Why it happens
GLP-1 medicines slow stomach emptying and act on brain nausea centers. Side effects are most common after starting or increasing the dose and usually ease with time.
What helps
• Eat smaller meals and stop when satisfied
• Limit fatty, fried and very sweet foods
• Stay hydrated; add fiber and fluids for constipation
• Avoid lying down soon after eating
• Do not escalate the dose until symptoms settle
Call your clinician for
• Severe or persistent abdominal pain, which can signal pancreatitis or gallbladder disease
• Vomiting that prevents keeping fluids down
• Signs of dehydration
Key studies and references
Educational content only, written and reviewed by Farhan Tahir, MD. It does not replace individual medical advice. For sudden chest pain, trouble breathing or stroke symptoms, call 911.
AT A GLANCE
Category
Medication support
Also known as
Nausea, constipation, diarrhea on semaglutide or tirzepatide
Reviewed by
Farhan Tahir, MD
Questions about your own care?
Dr. Tahir’s team offers consults through Youthful Medicine.
Keep exploring
Medication support
Protein & strength training on GLP-1 medicines
How to keep muscle while appetite falls: lift, prioritize protein and track strength.
Read the guide →
Medication support
Managing GI side effects on GLP-1 medicines
Practical ways to ease nausea, reflux and bowel changes, and when to call your clinician.
Read the guide →
Medication support
Keeping weight off after stopping medicine
Why weight returns after stopping GLP-1 medicines, and the strategies that help maintain results.
Read the guide →