Triptans and Gepants for Acute Migraine Treatment

Table of Contents

  1. Abortive vs Prevention — What the Words Mean
  2. The Treat-Early Rule (Before Allodynia)
  3. The Seven Triptans Compared
  4. Oral vs Nasal vs Subcutaneous — A Decision Tree
  5. Triptan Non-Responders: Switch Before You Quit
  6. Gepants — The Newer Small Molecules
  7. Lasmiditan (Reyvow) — The Ditan
  8. If You Have Cardiovascular Risk
  9. Combos: Triptan + NSAID, and Anti-Emetics
  10. Ergotamines and DHE — Old Drugs, Still Useful
  11. Rescue Stacking When the First Dose Fails
  12. Pregnancy and Breastfeeding
  13. Insurance Tiering — The Reality
  14. Key Research Papers
  15. Research Papers
  16. Connections

Abortive vs Prevention — What the Words Mean

Migraine care splits neatly into two buckets. Abortive (or "acute") medications are the ones you reach for when a migraine is starting or already hurting. Their job is to stop this attack. Preventive medications are taken every day whether you have a headache or not, and their job is to make future attacks less frequent, less severe, or less responsive to triggers. This article is about abortive treatment. The CGRP inhibitors and preventives page covers the other half.

The distinction matters because the drugs are different, the dosing rules are different, and the mistakes people make are different. Taking too much preventive does not cause medication-overuse headache; taking too much abortive does. Skipping a preventive for a day is almost harmless; skipping abortive treatment on an attack you could have stopped often means a wrecked 24 hours.

The Treat-Early Rule (Before Allodynia)

The single most important thing to know about abortive medication is this: it works dramatically better if you take it early. Within the first 30 to 60 minutes of pain, when the ache is still mild and you can still function, response rates for triptans and gepants run 60–70%. Wait two hours until the pain is moderate-to-severe, and response rates fall by roughly half.

The biological reason is a phenomenon called central sensitization. Early in an attack, the pain signal is driven by activated trigeminal nerves outside the brain — territory your medication can easily reach. After about 60 to 90 minutes, the signal moves inward and recruits the brain's own pain-processing neurons. You can usually tell when this has happened because a new symptom appears: cutaneous allodynia, where normal touch on the scalp, face, or even the skin where your glasses or ponytail sit becomes painful. Brushing your hair hurts. The pillow hurts. Once allodynia is present, triptans still work but less often, and even when they work, relief is slower and partial.

Practical translation: the moment you recognize this is a migraine — not a headache, not a sinus flare, not "maybe it'll pass" — take the medication. Carry it with you. Keep a dose in your car, your desk, your nightstand. The fear of "wasting" a dose on a headache that might have gone away on its own is misplaced; the cost of an untreated day is far higher than the cost of one extra tablet.

The Seven Triptans Compared

Triptans are 5-HT1B/1D receptor agonists. They constrict dilated cranial blood vessels, calm down the trigeminal nerve endings that release pain chemicals, and block pain signals at the brainstem. Seven are approved in the United States, and they are not interchangeable. Different triptans have different speeds of onset, different durations, different side-effect profiles, and different best-use cases.

If one triptan does not work, a different triptan often will. Roughly 30–40% of people who fail their first triptan respond to a second. The American Headache Society recommends trying at least two or three different triptans, at adequate doses and taken early, before concluding that triptans as a class do not work for you.

Oral vs Nasal vs Subcutaneous — A Decision Tree

Route of delivery matters as much as which molecule. Use this rough decision tree:

One gut-truth worth saying out loud: migraine slows gastric emptying (this is why nausea is so common). That means oral tablets sit in the stomach longer than usual and absorb later and less completely. The sicker you already are, the more a non-oral route makes sense.

Triptan Non-Responders: Switch Before You Quit

Perhaps 30–40% of migraine patients are labelled "triptan non-responders" at some point. The label is almost always premature. Before accepting it, make sure all of the following are true:

If all five boxes are checked and you still get less than 50% pain relief within two hours on most attacks, then triptans probably are not your drug. This is exactly where gepants and lasmiditan become useful.

Gepants — The Newer Small Molecules

Gepants are small-molecule CGRP receptor antagonists. Instead of squeezing blood vessels like triptans, they block the calcitonin gene-related peptide receptor that drives migraine pain at the trigeminal nerve. They do not cause vasoconstriction, which makes them safe for people with cardiovascular disease. Three are FDA-approved for acute treatment:

Gepants are slower and somewhat weaker than a well-matched triptan in head-to-head contexts, but they have two killer features. First, they are not vasoconstrictors, so they are usable in people who cannot take triptans (coronary disease, stroke history, uncontrolled hypertension). Second, they do not appear to cause medication-overuse headache the way triptans, opioids, and barbiturates do — see the medication-overuse article.

Lasmiditan (Reyvow) — The Ditan

Lasmiditan is a 5-HT1F receptor agonist. Triptans hit 5-HT1B (vessels), 5-HT1D (nerves), and 5-HT1F (central). Lasmiditan hits only 1F, so it has no vasoconstrictor activity. Doses are 50, 100, or 200 mg oral tablets. 2-hour pain-free rates around 28–32% at 200 mg (Kuca SPARTAN trial 2018). It works.

The catch: lasmiditan crosses the blood-brain barrier and can cause dizziness, sedation, and impaired attention. The FDA requires an 8-hour no-driving window after any dose. For many working-age patients this is a deal-breaker. But for a weekend migraine, an evening attack, or a patient where triptans are contraindicated and gepants are too slow, lasmiditan fills a genuine gap.

If You Have Cardiovascular Risk

Triptans and ergots constrict blood vessels, including coronary arteries. They are contraindicated in anyone with:

For these patients, the acute-treatment shortlist is: gepants (rimegepant, ubrogepant, zavegepant), lasmiditan, NSAIDs if kidneys tolerate them, and anti-emetic adjuncts. This is one of the most consequential developments in migraine care in a generation — before 2019, a 60-year-old with coronary disease and severe migraine often had nothing. Now they have three gepants and a ditan.

Combos: Triptan + NSAID, and Anti-Emetics

Adding an NSAID to a triptan increases response rates by roughly 10–15 percentage points, reduces recurrence, and extends coverage. The FDA-approved combination is Treximet (sumatriptan 85 mg + naproxen 500 mg) in a single tablet, but you can build the same effect by taking your triptan plus naproxen 500 mg or ibuprofen 600–800 mg separately.

Anti-emetics earn their keep too. Migraine-related gastroparesis slows every oral absorbtion; an anti-emetic speeds gastric emptying and blunts nausea simultaneously. Two workhorses:

Ergotamines and DHE — Old Drugs, Still Useful

Dihydroergotamine (DHE) predates triptans and still has specialized roles. It is a non-selective serotonin receptor agonist, longer-acting and less likely to give rebound than triptans. Available as nasal spray (Migranal, Trudhesa) and as IV infusion. The IV protocol — the Raskin protocol, typically 0.5–1 mg IV every 8 hours combined with metoclopramide for three days — is a standard rescue for status migrainosus (a migraine that has lasted more than 72 hours) and for breaking a medication-overuse cycle. Many headache clinics operate "infusion clinics" that deliver this on an outpatient basis.

Contraindications overlap with triptans and are somewhat stricter: no coronary disease, no stroke, no uncontrolled hypertension, no pregnancy, and do not combine with a triptan within 24 hours (both vasoconstrict).

Rescue Stacking When the First Dose Fails

A working rescue ladder for a bad attack looks something like this, modified to your personal contraindications:

  1. At first recognition: oral triptan (or gepant) + naproxen 500 mg + an anti-emetic such as metoclopramide 10 mg. Drink water.
  2. At 2 hours if still hurting: second dose of the triptan (check max daily dose) or switch to the nasal/SC route.
  3. At 4 hours if still hurting: add a gepant (rimegepant or ubrogepant) — different mechanism, stackable with a triptan that is already wearing off. Add a dose of prochlorperazine if you have it.
  4. At 6–8 hours if status migrainosus: DHE nasal spray if prescribed; otherwise consider an urgent care or ER visit for IV fluids, IV ketorolac, IV metoclopramide or prochlorperazine, and possibly IV DHE or IV magnesium.
  5. Red flags to go straight to the ER: "worst headache of my life," thunderclap onset, new neurological deficit, fever and stiff neck, head trauma, or a migraine that feels different from your usual pattern.

Stacking drugs is safer than it sounds as long as you respect the rules: do not combine a triptan with DHE within 24 hours, do not exceed the daily max of any one class, and do not use any abortive on more than 10–15 days per month averaged over a few months — that is the territory of medication-overuse headache.

Pregnancy and Breastfeeding

Migraines often improve during pregnancy, especially the second and third trimesters, but not always. The acute-treatment options shrink:

Pregnancy-specific decisions should always involve your obstetrician and ideally a headache specialist. The risk calculus changes trimester by trimester.

Insurance Tiering — The Reality

In the U.S., generic triptans (sumatriptan tablets, rizatriptan, zolmitriptan, naratriptan, almotriptan) are cheap — often under $20 per month with a discount card. Brand-name formulations (Zomig nasal, Onzetra, Treximet, Imitrex SC autoinjectors) are not. Gepants, lasmiditan, and the newer nasal gepant cost $800–$1000 per month at retail and sit on insurance tiers 3 or 4. Practical tactics:

The hard truth: if you use more than 8–10 doses per month of any acute agent, you are in preventive-therapy territory. Preventives — CGRP monoclonal antibodies, gepants dosed every other day, beta blockers, topiramate, Botox for chronic migraine — reduce attack frequency so acute doses become affordable again. See the preventives page for the other half of the strategy.

Key Research Papers

Research Papers

For further reading, the following PubMed topic searches return current peer-reviewed work on acute migraine pharmacology and clinical practice:

  1. Triptans in acute migraine — meta-analyses
  2. Gepants, ubrogepant, and rimegepant for migraine
  3. Zavegepant nasal spray for acute migraine
  4. Lasmiditan and the 5-HT1F pathway
  5. Cutaneous allodynia and triptan response
  6. Sumatriptan-naproxen combination therapy
  7. Dihydroergotamine for status migrainosus
  8. Triptan cardiovascular safety
  9. Sumatriptan pregnancy exposure registry

Connections

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