Welcome to the community @col!
The standard clusterbusters protocol is 1 to 1.5g every 5 days for a min of 3 doses and you need to detox from most pharma drugs for 5 days prior to dosing.
Dallas Denny
Agreed of course with Dallas Denny that the answer is yes, you need larger doses in the range he outlined, along with a detox from any busting blockers, of which triptans (e.g. Imitrex) tend to be the most notorious.