can you provide more context from the source provided?
Added #deck-AnKing Overhaul for Step 1 & 2-AnKingMed, rejected-suggestion and removed #deck-anking-overhaul-for-step-1–2-ankingmed, open-suggestion
“An acute attack can be aborted with inhalation of 100% oxygen. Sumatriptan can also be used to abort a cluster headache; however, due to side effects and slower onset of action, it is not the preferred first-line treatment” UWorld - Step 2 4253
(sorry didn’t see ur first comment until now)
Thats okay you can resubmit a new suggestion if you’d like!