... Assay: 99% White powder Derivative Type: Almotriptan Maleate CAS Registry Number: 181183-52-8 Almotriptan is used to treat migraine headaches ... work by narrowing the blood vessels around the brain. Almotriptan also reduces substances in the body that can trigger ... , sensitivity to light and sound, and other migraine symptoms. Almotriptan often relieves many symptoms that occur together with the pain ...