Mechanism of Action Almogran Tab, Almotriptan is a medication commonly used to treat migraines. It belongs to a class of drugs known as triptans, which work by stimulating serotonin (5-HT) receptors in the brain. Specifically, almotriptan targets the 5-HT1B and 5-HT1D receptors, leading to the constriction of blood vessels around the brain and reducing the release of inflammatory substances that..