Most GLP-1 medication side effects are mild, temporary, and more common when starting treatment or increasing your dose. Many symptoms improve as your body adjusts to the medication.
This article explains which side effects are commonly expected during treatment and when you should contact your provider.
Common Side Effects
Common side effects may include:
Mild nausea
Decreased appetite
Constipation
Loose stools or diarrhea
Bloating or gas
Mild stomach discomfort
Fatigue
Headache
Mild dizziness
Injection site redness or irritation
Not everyone experiences side effects, and symptoms can vary from person to person.
When Side Effects Are Most Common
Side effects are often more noticeable:
During the first few weeks of treatment
After dose increases
While your body adjusts to a new dose
For many patients, symptoms gradually improve over time.
Symptoms That Are Usually Temporary
Some temporary symptoms may include:
Feeling fuller faster
Eating smaller portions naturally
Mild nausea after injections
Temporary appetite reduction
Mild fatigue during dose adjustments
These symptoms are commonly reported and are often manageable during treatment.
When to Contact Your Provider
Please contact your provider or support team if:
Side effects are becoming more severe
Symptoms are not improving over time
You are unable to eat or drink enough
You are vomiting frequently
You feel weak, dehydrated, or dizzy
Symptoms are interfering with your daily activities
Your provider may recommend:
Staying at your current dose longer
Slower dose increases
Adjustments to your treatment plan
Additional symptom-management guidance
Related Support Articles
Note: For symptom-specific support, refer to:
Foods and Eating Tips to Help Reduce GLP-1 Nausea
What Should I Eat While Taking GLP-1 Medication?
When to Message Us About a Symptom
Rare but Serious GLP-1 Side Effects
Need Additional Help?
Most common GLP-1 side effects improve gradually as your body adjusts to treatment, especially during the first few weeks or after dose increases. Monitoring your symptoms and communicating changes to your care team can help support a smoother treatment experience.
If you have any more questions, you can contact the Mevo Health support team through live chat.