Are CGRP monoclonal antibodies safe during pregnancy?

Question

Hello doctor,

I am 29 years old. I have been suffering from migraines since college. I experience an aura with flashing lights, nausea, and sometimes vomiting. The attacks become worse around my periods. The most recent MRI was normal. I tried triptans, but they make me too drowsy.

I heard about monthly migraine injections (CGRP inhibitors). Are they safe for women who may want to become pregnant in the future? Also, is it normal for migraines to trigger anxiety and brain fog even after the headache stops? I am just so tired of planning life around attacks.

Kindly help.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I read your query and understood your concern.

I hear your frustration, and it is very common for people with long‑standing migraines, especially those with aura and menstrual triggers, to feel like the condition dominates their daily life.

The newer monthly injections that you have heard about, called CGRP (calcitonin gene‑related peptide) monoclonal antibodies (such as Erenumab, Fremanezumab, and Galcanezumab), have shown good effectiveness in reducing attack frequency and severity and are generally well tolerated.

However, since long‑term safety data in pregnancy and breastfeeding are limited, most doctors recommend stopping these medications before trying to conceive, and they may guide you toward other preventive options if pregnancy is a near‑term goal.

What you describe, anxiety, fatigue, or brain fog even after the headache has resolved, is also part of the “postdrome” phase of migraine, and it can last hours to a day or two, so it is considered a normal extension of the attack rather than something separate.

Because triptans cause you drowsiness, your neurologist may suggest alternative preventive approaches (such as hormonal approaches for menstrual migraine, or other daily oral preventives) alongside lifestyle measures like regular sleep, hydration, exercise, and tracking triggers.

I suggest you discuss a personalized plan with your doctor so you are not constantly planning life around the next attack.

I hope that this answers your query.

Kindly follow up if you have more doubts.

Thank you.