Prepare for the Pharmacology IV – Headache Therapeutics Test. Review the therapeutic approaches, tackle multiple-choice questions with explanations, and boost your test-taking confidence. Ace your exam with precision!

Multiple Choice

What is lasmiditan's mechanism and a major driving safety caveat?

Lasmiditan works by selectively activating the 5-HT1F receptor. This makes it part of the ditan class, which provides acute migraine relief without causing constriction of cerebral blood vessels because 5-HT1F activation does not mediate vasoconstriction. That’s in contrast to triptans, which are 5-HT1B/1D agonists and can cause vasoconstriction. A major safety caveat is CNS-related: dizziness and sedation can impair alertness, so driving or operating heavy machinery is not advised for a period after dosing—typically at least 8 hours, with impairment potentially lasting up to about 24 hours at higher doses.

Lasmiditan works by selectively activating the 5-HT1F receptor. This makes it part of the ditan class, which provides acute migraine relief without causing constriction of cerebral blood vessels because 5-HT1F activation does not mediate vasoconstriction. That’s in contrast to triptans, which are 5-HT1B/1D agonists and can cause vasoconstriction. A major safety caveat is CNS-related: dizziness and sedation can impair alertness, so driving or operating heavy machinery is not advised for a period after dosing—typically at least 8 hours, with impairment potentially lasting up to about 24 hours at higher doses.