I am very careful to use the least amount of sumatriptan injections as possible each week. I mostly use 2-3 mg per shot. I am fortunate to get vials of sumatriptan to load my own needles. I find the side effects also decrease at a faster rate with a smaller dose. Do others find using a smaller dose of the injections to be just as effective? http://chsg.org/sumatriptan-injections/