Medically reviewed by Drugs.com. Last updated on Mar 20, 2022.
Commonly used brand name(s)
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antimigraine
Uses for Reyvow
Lasmiditan is used to treat acute migraine headaches with or without aura. It is not used to prevent migraine headaches. Lasmiditan works in the brain to relieve the pain from migraine headaches.
Lasmiditan is not an ordinary pain reliever. It will not help with any kind of pain other than migraine headaches. This medicine is usually used in people whose headaches are not helped or relieved by acetaminophen (Tylenol®), aspirin, or other pain relievers.
This medicine is available only with your doctor's prescription.
Before using Reyvow
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of lasmiditan in the pediatric population. Safety and efficacy have not been established.
Although appropriate studies on the relationship of age to the effects of lasmiditan have not been performed in the geriatric population, geriatric-specific problems are not expected to limit the usefulness of lasmiditan in the elderly. However, elderly patients are more likely to have dizziness, and age-related kidney, liver, or heart problems, which may require caution and an adjustment in the dose for patients receiving lasmiditan.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Dabigatran Etexilate
- Doxorubicin Hydrochloride Liposome
- Methylene Blue
- Morphine Sulfate Liposome
- Opium Alkaloids
- St John's Wort
- Tenofovir Alafenamide
Interactions with food/tobacco/alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other medical problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Bradycardia (low heart rate) or
- Heart disease or
- Hypertension (high blood pressure)—Use with caution. May make these conditions worse.
- Liver disease, severe—Use is not recommended in patients with this condition.
Proper use of Reyvow
Take this medicine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. Using too much lasmiditan may increase the chance of side effects.
Do not use this medicine for a headache that is not a migraine headache. Talk to your doctor about what to do for regular headaches.
This medicine comes with a Medication Guide. Read and follow the instructions carefully. Ask your doctor if you have any questions.
Swallow the tablet whole. Do not crush, break, or chew it. You may take it with or without food.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For migraine headaches:
- Adults—50 milligrams (mg), 100 mg, or 200 mg per day, as needed. Do not take more than one dose within 24 hours.
- Children—Use and dose must be determined by your doctor.
- For migraine headaches:
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions while using Reyvow
It is very important that your doctor check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it.
Check with your doctor if you used this medicine and your migraine did not go away, or if your migraine got worse or started occurring more often.
Lasmiditan may cause drowsiness or dizziness. Wait at least 8 hours after taking lasmiditan before you drive, use machines, or do anything else that requires you to be alert.
Check with your doctor right away if you have anxiety, restlessness, a fast heartbeat, fever, sweating, muscle spasms, twitching, nausea, vomiting, diarrhea, or see or hear things that are not there. These may be symptoms of a serious condition called serotonin syndrome. Your risk may be higher if you also take certain other medicines that affect serotonin levels in your body.
Check with your doctor before using this medicine with alcohol or other medicines that affect the central nervous system (CNS). The use of alcohol or other medicines that affect the CNS with lasmiditan may worsen the side effects of this medicine, such as dizziness, poor concentration, drowsiness, unusual dreams, and trouble with sleeping. Some examples of medicines that affect the CNS are antihistamines or medicine for allergies or colds, sedatives, tranquilizers, or sleeping medicines, medicine for depression, medicine for anxiety, prescription pain medicine or narcotics, medicine for attention deficit and hyperactivity disorder, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics.
Using lasmiditan alone or in combination with other migraine medicines for 10 or more days per month may lead to worsening of headache. You may keep a headache diary to record your headache frequency and drug use.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal (eg, St. John's wort) or vitamin supplements.
Reyvow side effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
- relaxed and calm
- Irregular heartbeat
- trouble breathing
- Fast heartbeat
- hives, itching, rash
- joint pain, stiffness or swelling
- redness of the skin
- swelling of the eyelids, face, lips, hands, or feet
- tightness in the chest
- troubled swallowing
Incidence not known
- difficulty sleeping
- drowsiness to profound coma
- dry mouth
- overactive reflexes
- poor coordination
- seeing, hearing, or feeling things that are not there
- talking or acting with excitement you cannot control
- trembling or shaking
- unusual drowsiness, dullness, tiredness, weakness or feeling of sluggishness
- unusual tiredness or weakness
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
- Burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings
- False or unusual sense of well-being
- feeling of constant movement of self or surroundings
- muscle spasm
- sensation of spinning
- trouble seeing
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Frequently asked questions
More about Reyvow (lasmiditan)
- Side effects
- Drug interactions
- Dosage information
- During pregnancy
- Reviews (12)
- Drug images
- Compare alternatives
- Pricing & coupons
- En español
- Drug class: antimigraine agents
- FDA approval history
Related treatment guides
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.