About galcanezumab
Calcitonin gene-related peptide antagonist
Used for
- Prevention of migraine in adults
- Treatment of episodic cluster headache in adults
Usual adult dose
Migraine: 240 mg once, then 120 mg monthly. Cluster headache: 300 mg monthly during the cluster period.
Common side effects
- Injection-site pain, redness, or itching
- Constipation
- Dizziness
Important warnings
- Serious allergic reactions can occur, sometimes days after injection.
- Seek urgent care for breathing difficulty or swelling of the face, mouth, or throat.
- May worsen constipation; severe cases have been reported.
Pregnancy
Human pregnancy data are limited; use during pregnancy requires weighing potential benefits and risks.
Breastfeeding
It is unknown whether galcanezumab passes into breast milk; discuss risks and benefits with a healthcare professional.
Interactions
- No clinically important drug interactions are known.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.