Nausea after a GLP-1 injection: What is normal?

nausea on glp1 why it happens what to ask your doctor

What is it?

GLP-1 medicines slow how quickly food leaves your stomach. This helps you feel full, but it can also cause nausea while your body adjusts.

What does it mean for me?

Nausea is common after starting treatment or increasing the dose. It is often worst during the first week of a new dose. It should gradually improve over four to six weeks.

What should I do now?

  • Eat smaller meals and avoid fatty or spicy foods.
  • Sip water regularly and remain upright for 30 minutes after eating.
  • Tell your doctor about other medicines, supplements, or Ayurvedic products you use.

What should I watch for?

Watch whether the nausea improves each week. Notice repeated vomiting, difficulty drinking, dark urine, dizziness, or a very dry mouth. Also watch for severe upper stomach pain that spreads to your back.

When should I get medical help?

Contact your doctor if you cannot keep fluids down for over 24 hours or nausea keeps worsening after eight weeks.

Stop the medicine and get medical help immediately for severe, lasting upper stomach pain that spreads to your back.

Remember

Mild nausea often improves, but worsening symptoms, dehydration, or severe stomach pain need medical attention.