As such, WebMD Zyalix details 3 to 20 grams of l-arginine (depending on condition) as “possibly effective” for addressing discomfort in the chest, hypertension, and construction issues. WebMD also indicates that anywhere between 80mg and 600mg everyday of ginkgo may enhance anxiety, emotional operate, PMS, schizophrenia, dementia, vision issues in those with diabetes (as well as other kinds of vision loss), .