.the smok-e mountain brand's facebook page had been taken down on thursday... august 2017 (21)...erenumab (aimovig) is the first of four new migraine drugs in the pipeline that target calcitonin gene-related peptide (cgrp), a molecule that's produced in nerve cells of the. .it causes stroke and dementia as well as mood disturbance. svd increases with age but is accelerated by hypertension and diabetes.