Doctors categorize Chiari malformation into three types, depending on the anatomy of the brain tissue that is displaced into the spinal canal, and whether developmental abnormalities of the brain or spine are present. Chiari malformation type I develops as the skull and brain are growing.
Evening primrose oil is LIKELY SAFE for most people when used for up to a year. It can sometimes cause mild side effects including upset stomach, nausea, diarrhea, and headache. Pregnancy and breast-feeding: Taking evening primrose oil is POSSIBLY UNSAFE during pregnancy.
Other Benefits of Evening Primrose Oil. 1  Inhibits the formation of clots in veins. Evening primrose oil also promotes the production of PGI2, a prostaglandin that inhibits the formation of clots in veins (vitamin E also helps the PGI2 synthesis). 2  Helps control rheumatoid arthritis.