sumatriptan
Brand names: Imitrex
Sumatriptan injection is a medicine used to treat migraine and cluster headaches. It works by narrowing blood vessels in the brain.
Drug Shortage Alert
sumatriptan is currently listed as to be discontinued by the FDA. Affected manufacturer: Prasco Laboratories.
View all drug shortages →Drug Pricing (NADAC)
Brand Price
$72.78/unit
Generic Price
$17.12/unit
Generic Savings
76%
Generic Available
Yes (25 manufacturers)
Pricing data from NADAC (CMS), effective December 18, 2024. Compare all drug costs →
What it does
Sumatriptan injection is used to treat migraine headaches, with or without aura, in adults.
Common side effects
Injection site reactions (pain, stinging, burning, swelling, bruising, bleeding), Tingling, Dizziness
Key warnings
Sumatriptan can cause serious heart problems, including heart attack and angina.
How It Works
Sumatriptan belongs to a class of drugs called triptans. It works by attaching to serotonin receptors in the brain. This causes blood vessels in the brain to narrow, which can relieve headache pain.
How to Take It
This medicine is given as a shot under the skin (subcutaneous). For migraines, the dose is usually 1 to 6 mg. For cluster headaches, the dose is 6 mg. Do not take more than 12 mg in 24 hours. Wait at least 1 hour between doses.
Pregnancy & Breastfeeding
Tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding. This medicine may harm your unborn baby. It is not known if this medicine passes into breast milk.
Missed Dose
If you miss a dose, take it as soon as you remember. Do not take two doses at the same time.
Storage
Store between 36° and 86°F (2° and 30°C). Protect from light and keep in the original carton.
Side Effects (from patient reports)
Based on 23,908 FDA adverse event reports.
FDA Adverse Event Report Analysis
Detailed analysis of 36,885 reports from the FDA Adverse Event Reporting System (FAERS). Reports span 1996–2025.
Total Reports
36,885
Death-Related Reports
865
Hospitalization Reports
6,843
Top Indication
Migraine
Gender Distribution
Age Distribution
Most Reported Adverse Reactions (FAERS)
| # | Reaction | Reports |
|---|---|---|
| 1 | DRUG INEFFECTIVE | 5,397 |
| 2 | HEADACHE | 3,102 |
| 3 | NAUSEA | 2,795 |
| 4 | MIGRAINE | 2,734 |
| 5 | FATIGUE | 2,100 |
| 6 | PAIN | 1,967 |
| 7 | DIZZINESS | 1,666 |
| 8 | VOMITING | 1,578 |
| 9 | DYSPNOEA | 1,332 |
| 10 | ANXIETY | 1,244 |
| 11 | OFF LABEL USE | 1,226 |
| 12 | DIARRHOEA | 1,168 |
| 13 | MALAISE | 1,048 |
| 14 | ARTHRALGIA | 1,046 |
| 15 | DEPRESSION | 1,030 |
Reactions in Death Reports
Reactions in Hospitalization Reports
Source: FDA FAERS (Adverse Event Reporting System) FDA FAERS (Adverse Event Reporting System) Reports are voluntary and do not establish causation
Serious Warnings
Sumatriptan can cause serious heart problems, including heart attack and angina. If you have risk factors for heart disease (such as high blood pressure, high cholesterol, diabetes, smoking, or a family history of heart disease), your doctor should check your heart before you start taking this medicine. Sumatriptan can also cause stroke and other serious side effects. Call your doctor right away if you have chest pain, shortness of breath, weakness on one side of your body, or trouble speaking.
Known Drug Interactions
7.4 Selective Serotonin Reuptake Inhibitors /Serotonin Norepinephrine Reuptake Inhibitors and Serotonin Syndrome Cases of serotonin syndrome have been reported during coadministration of triptans and SSRIs, SNRIs, TCAs, and MAO inhibitors [see Warnings and Precautions (5.7)].
Mechanism: Both drugs can increase serotonin levels in the body, which may lead to a serious reaction called serotonin syndrome.
What to do: Tell your doctor immediately if you experience symptoms like a fast heartbeat, sweating, or muscle stiffness.
Sumatriptan Clinical Impact: There have been postmarketing reports describing patients with weakness, hyperreflexia, and incoordination following the use of an SSRI and sumatriptan. Intervention: If concomitant treatment with sumatriptan and an SSRI is clinically warranted, appropriate observation of the patient is advised [ see Warnings and Precautions (5.2) ].
Mechanism: Combining these medicines can lead to physical issues like weakness and poor coordination by affecting serotonin in the body.
What to do: If you take both, your doctor should monitor you closely for any signs of muscle or coordination problems.
Sumatriptan: Rare postmarketing reports of weakness, hyperreflexia, and incoordination following use of an SSRI and sumatriptan. Sumatriptan - There have been rare postmarketing reports describing patients with weakness, hyperreflexia, and incoordination following the use of a selective serotonin reuptake inhibitor (SSRI) and sumatriptan. If concomitant treatment with sumatriptan and an SSRI (e.g., fluoxetine, fluvoxamine, paroxetine, sertraline) is clinically warranted, appropriate observation of the patient is advised.
Mechanism: Both drugs affect serotonin levels in the brain, which can rarely lead to symptoms like muscle weakness or poor coordination.
What to do: If you must take both, your doctor should watch you closely for any signs of muscle problems or coordination issues.
Sumatriptan –There have been rare postmarketing reports describing patients with weakness, hyperreflexia, and incoordination following the use of a selective serotonin reuptake inhibitor (SSRI) and sumatriptan. If concomitant treatment with sumatriptan and an SSRI (e.g., citalopram, fluoxetine, fluvoxamine, paroxetine, sertraline) is clinically warranted, appropriate observation of the patient is advised.
Mechanism: Combining these drugs can rarely cause a reaction that leads to muscle weakness, overactive reflexes, or loss of coordination.
What to do: Your doctor should monitor you for physical symptoms like weakness or coordination issues if you take these together.
Common Questions
Can I use sumatriptan to prevent migraines?
How quickly does sumatriptan work?
Can I take another pain reliever with sumatriptan?
What should I do if sumatriptan doesn't relieve my headache?
Can sumatriptan cause high blood pressure?
Is it safe to drive after taking sumatriptan?
Can I take sumatriptan if I have kidney problems?
Can I take sumatriptan if I have liver problems?
What if I am allergic to sumatriptan?
Can I take sumatriptan with other migraine medicines?
What are the common side effects of sumatriptan?
Does sumatriptan interact with other medications?
What drug class is sumatriptan?
Is there a generic version of sumatriptan?
Is sumatriptan safe during pregnancy?
Is sumatriptan currently in shortage?
Related Medications in Triptan (Serotonin 5-HT1 Agonist)
Other drugs grouped near sumatriptan — same-class peers and common alternatives.
abatacept
Orencia
Orencia is a medicine that helps to reduce inflammation.
Compare with sumatriptan →
acetaminophen
Tylenol
Acetaminophen (Tylenol) is a medicine that can relieve pain and reduce fever.
Compare with sumatriptan →
acetaminophen/hydrocodone
Vicodin, Norco
This medicine contains acetaminophen and hydrocodone.
Compare with sumatriptan →
acetaminophen/oxycodone
Percocet
Percocet is a strong pain medicine.
Compare with sumatriptan →
adalimumab
Humira
Idacio is a medicine that blocks a protein called TNF.
Compare with sumatriptan →
Medication Guides
Understanding Drug Interactions
How CYP450 enzymes, inhibitors, and inducers affect your medications
Generic vs Brand Name Drugs
FDA requirements, cost savings, and when the difference matters
Narrow Therapeutic Index Drugs
Why some drugs demand precise dosing and monitoring
Common Drug Interactions
Dangerous medication combinations and how to protect yourself
Related Health & Safety Data
🩺 Find a Doctor
Search prescribers for Triptan (Serotonin 5-HT1 Agonist)
🏨 Hospital Quality
CMS hospital ratings, safety scores & patient outcomes
💊 Supplement Data
NIH DSLD — check supplement ingredients & label claims
🍽️ Food Safety Alerts
FDA recalls, inspections & outbreak investigations
⚠️ Product Recalls
FDA, CPSC & NHTSA recall search
💉 Procedure Costs
Medicare procedure pricing for 9,297 procedures
Save on sumatriptan
Compare prices and find discounts at pharmacies near you. Free coupons can save up to 80% on prescriptions.
Disclosure: This link may earn us a commission at no extra cost to you. See our terms.
What the FDA Data Shows for sumatriptan
The FDA label for sumatriptan (sold under brand names such as Imitrex) classifies it as a prescription-only medication in the Triptan (Serotonin 5-HT1 Agonist) class. Sumatriptan injection is used to treat migraine headaches, with or without aura, in adults. Official labeling lists 10 commonly reported side effects, including Injection site reactions (pain, stinging, burning, swelling, bruising, bleeding), Tingling, Dizziness.
Post-market surveillance from the FDA Adverse Event Reporting System (FAERS) captures real-world experience. For this drug, FAERS contains 23,908 voluntary reports. The database also lists 4 documented drug interactions derived from FDA labeling, with the top-flagged interaction rated minor severity. NADAC pricing from CMS shows a generic unit cost of $17.12 versus $72.78 for the brand — a 76% generic savings.
Report counts do not establish causation — a FAERS entry documents a temporal association, not proof that the drug produced the outcome. Widely prescribed medications naturally accumulate more reports than niche therapies, so raw totals must be interpreted alongside total exposure. Shortage status, recall history, and patent information further shape supply and switching decisions. This page summarizes public FDA data for educational purposes only and is not a substitute for professional medical advice — always consult a licensed healthcare provider before starting, stopping, or changing any medication.
Data Sources
Drug labeling: FDA Drug Labels (SPL/DailyMed). Adverse events: FDA Adverse Event Reporting System (FAERS). Pricing: CMS National Average Drug Acquisition Cost (NADAC). Shortage status: FDA Drug Shortages Database.
FAERS reports are voluntary and do not establish causation. Drug interactions are derived from FDA labeling and clinical references. Always consult a healthcare professional before making medication decisions.
Last updated: September 28, 2024
Read our methodology — how this data is sourced, computed, and verified.
All federal data sources used on this page
- FDA Orange Book — approved drug products with therapeutic equivalence. accessdata.fda.gov/cder/ob
- FDA DailyMed — NIH-hosted drug labeling for FDA-approved meds. dailymed.nlm.nih.gov
- FDA Adverse Event Reporting System (FAERS) — post-marketing safety surveillance. fda.gov/drugs/faers
- NLM RxNorm — standardized clinical drug nomenclature. nlm.nih.gov/research/umls/rxnorm
- CMS Medicare Part B Drug Average Sales Price Files — federal drug pricing data. cms.gov/medicare/part-b-drugs/asp
- FDA Drug Shortages Database — current and resolved drug shortage tracking. accessdata.fda.gov/drugshortages