Maxalt (rizatriptan) is a headache medicine that narrows the blood vessels around the brain. Rizatriptan also reduces substances in the body that can trigger headache pain, nausea, sensitivity to light and sound, and other migraine symptoms. Pictures of Maxalt (Rizatriptan Benzoate), drug imprint information, side effects for the patient. If you have phenylketonuria (PKU you should know that taking the rapidly dissolving tablet form of ondansetron (Zofran ODT) may get propranolol increase your level of phenylalanine, which can be dangerous for you. User Reviews for Maxalt-MLT to treat Migraine. The following information is NOT intended to endorse drugs or recommend therapy. While these reviews might be helpful, they are not a substitute for the expertise, skill, knowledge and judgement of healthcare practitioners in patient care. Migraine. Triptans are used for the treatment of severe migraine attacks or those that do not respond to NSAIDs or other over-the-counter drugs. Triptans are a mid-line treatment suitable for many migraineurs with typical attacks. Learn about Maxalt (Rizatriptan Benzoate) may treat, uses, dosage, side effects, drug interactions, warnings, patient labeling, reviews, and related medications.