Frovatriptan: what it treats, how to take it, side effects
Last updated September 3, 2026.
Frovatriptan is a triptan - it narrows blood vessels around the brain and blocks the pain signals and substances that drive a migraine. You may know it as Frova. The longest-acting triptan - the one for migraines that run long or reliably come back. It does not prevent attacks or reduce how many you get.
What does it treat?
Migraine attacks - taken at the first sign.
How do you take it?
One tablet at the first sign of a migraine - a second tablet after 2 hours if symptoms return - never more than 3 tablets in 24 hours. No headache medication, including this one, on more than 10 days per month - the medication-overuse line. Headaches worsening or multiplying mean a call, not more tablets. Missed dose: not a concept here - attack-triggered only.
Side effects to know
- Common: dizziness, drowsiness, headache, dry mouth, indigestion, excessive tiredness, flushing, hot or cold feeling, and pain in joints or bones.
- Serious - call your doctor immediately or get emergency care: tightness, pain, pressure, or heaviness in the chest, throat, neck, or jaw; shortness of breath; breaking out in a cold sweat; lightheadedness or faintness; slow or difficult speech; weakness or numbness of an arm or leg; sudden or severe stomach pain; bloody diarrhea; constipation; and sudden weight loss.
Who should not take it?
Not with heart disease, uncontrolled high blood pressure, circulation problems, or past stroke - the vessel-narrowing mechanism makes the heart list absolute. Flag liver disease and every medication you take - antidepressants on board raise the serotonin-syndrome question. If you become pregnant, call your doctor.
When is it an emergency?
Chest pain or pressure, trouble breathing, one-sided weakness, slurred speech, or bloody diarrhea is a 911 call. For an overdose, call Poison Control at 1-800-222-1222. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
What a Pymander AI doctor consult looks like
Illustrative example, not a real member's messages.
Common questions
Why did my doctor pick the longest-acting triptan?
Attack-shape matching: frovatriptan comes on slower but holds for a long stretch - the right tool for migraines that build gradually, run a day or two, or reliably rebound the next morning after shorter triptans. The fast triptans suit the slam-in-an-hour attacks. The diary is what shows your shape, and the drug choice follows it.
Why the 10-days-a-month limit?
Medication-overuse headache: use any headache medication - this one included - on more than 10 days a month and the brain turns headache-prone: the rescue starts generating the attacks it treats. The diary is the early-warning instrument, and crossing the line is the signal to talk about a daily preventive, not to white-knuckle through.
Why did my doctor screen my heart first?
Triptans narrow blood vessels - that is the mechanism - and narrowing is risky where vessels are already diseased: heart disease, uncontrolled blood pressure, circulation problems, past stroke all rule the drug out or gate it behind testing. The emergency symptoms after a dose live in the same geography: chest pressure, shortness of breath, cold sweat, one-sided weakness, slurred speech - 911, not a message.
What are the stomach warnings about?
On the serious list for this one: sudden or severe stomach pain, bloody diarrhea, constipation, and sudden weight loss - the circulation mechanism can reach the gut's blood supply too. Rare, specific, and call-immediately. The common stomach effects - dry mouth and indigestion - are the mild everyday kind.
Can I take it with my antidepressant?
That combination goes on the doctor's list: triptans plus serotonergic drugs - SSRIs, SNRIs - can push serotonin too far. The warning signs: agitation, sweating, fast heartbeat, muscle stiffness, twitching. Many people use both safely under supervision - the supervision is the point. Never start, stop, or stack silently.
What happens if the first tablet does nothing?
If it did nothing, no second tablet without calling your doctor - no response changes the question. If it worked but the migraine returns, the second tablet is allowed after 2 hours, inside the 3-tablet 24-hour cap. Either way, a pattern of failures is a medication conversation, not a reason to push the dose.