Rizatriptan: what it treats, how to take it, side effects
Last updated September 3, 2026.
Rizatriptan is a triptan that stops a migraine in progress - including in a tablet that melts on your tongue, no water needed. You may know it as Maxalt or Maxalt-MLT. It narrows blood vessels in the brain, stops pain signals, and blocks the substances behind migraine pain, nausea, and light and sound sensitivity. It treats attacks; it does not prevent them.
What does it treat?
Migraine headaches. Confirm the diagnosis with your doctor first - MedlinePlus notes rizatriptan should not be used for certain headaches, so the migraine label matters.
How do you take it?
At the first sign of a migraine. The label doses adults at 5 or 10 mg as a single dose; if symptoms improve but return after 2 hours or longer, a second dose is allowed at least 2 hours later, with 30 mg the 24-hour maximum. If the first dose does nothing, do not take a second - call your doctor. Swallow regular tablets whole. For the orally disintegrating tablet: dry hands, peel back the foil (never push the tablet through), place it on your tongue, let it dissolve, and swallow with saliva - no water needed, and only open the blister right before taking it. Never take it within 24 hours of another triptan or an ergot-type medication. And the overuse rule: no headache medication, including this one, more than 10 days per month; needing it for more than 4 headaches in a month means calling your doctor.
Side effects to know
- Common: dizziness, tiredness, sleepiness, upset stomach, vomiting, diarrhea, tremors, flushing, and dry mouth.
- Serious: tightness, pain, pressure, or heaviness in the chest, throat, neck, or jaw (emergency care); rapid, pounding, or irregular heartbeat; shortness of breath; the serotonin-syndrome cluster of fever, sweating, confusion, fast or irregular heartbeat, and severe muscle stiffness; lightheadedness with speech problems or weakness or numbness of an arm or leg (stroke signs); bloody diarrhea; pale or blue fingers and toes, or coldness or no feeling in hands and feet; trouble breathing; and vision changes or ringing in the ears.
Who should not take it?
Anyone with heart disease, a past heart attack, angina, irregular heartbeats, stroke or mini-stroke, or circulation problems like Raynaud's or ischemic bowel disease - MedlinePlus says your doctor may rule it out entirely. MAO-A inhibitors within the past two weeks rule it out. Disclose high blood pressure, high cholesterol, diabetes, kidney or liver disease, smoking, being overweight, menopause, and family heart history. The orally disintegrating tablets contain phenylalanine, which matters for PKU. It can make you drowsy - no driving until you know it. Pregnancy and breastfeeding need a direct call with your doctor.
When is it an emergency?
Chest, throat, neck, or jaw pain or tightness, trouble breathing, or stroke signs like one-sided weakness or speech problems are a 911 call. The serotonin-syndrome cluster means immediate care. For an overdose (drowsiness, faintness, pounding heartbeat), 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.
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Common questions
How is rizatriptan different from sumatriptan?
Same class, same mechanism - both triptans that narrow blood vessels in the brain to stop a migraine. Rizatriptan tends to act faster and comes as the melt-on-your-tongue tablet, which matters when migraine nausea makes swallowing water miserable. Some people respond to one triptan and not another, so switching is a normal doctor conversation.
Why can't I take rizatriptan within 24 hours of another triptan?
Stacking vessel-constricting drugs stacks the risk. MedlinePlus says do not take rizatriptan within 24 hours of another selective serotonin receptor agonist (sumatriptan, eletriptan, zolmitriptan, and the rest) or an ergot-type medication. If one triptan failed you, the next step is a call to your doctor, not a second triptan the same day.
How do I take the Maxalt-MLT melt?
With dry hands, peel back the foil of the blister - do not push the tablet through, it crumbles. Place it on your tongue immediately, let it dissolve, and swallow with saliva; no water needed, per MedlinePlus. Only open the blister right before taking it, and note for PKU: the disintegrating tablets contain phenylalanine.
Why can't I use rizatriptan more than 10 days a month?
Medication-overuse headache. MedlinePlus says using rizatriptan more often or longer than recommended can make headaches worse and more frequent - the 10-day ceiling applies to all headache medications combined, not just this one. Needing it for more than 4 headaches in a month is the signal to talk prevention with your doctor.
Is the chest pressure after taking it normal?
Never assume it is. Tightness, pain, pressure, or heaviness in the chest, throat, neck, or jaw is on MedlinePlus's serious list - call your doctor immediately or get emergency care. Triptans constrict blood vessels, which is how they work and also why people with heart disease, past heart attacks, or stroke are told not to take them.
Can I drink alcohol while taking rizatriptan?
Neither the label nor MedlinePlus lists a specific alcohol interaction. Alcohol is a common migraine trigger and rizatriptan can cause drowsiness and dizziness, so drinking around an attack works against you. For a clear personal answer, your doctor is the source.