TxLonghorn said:
Well, actually I hadn't heard of that before, so I did a search and came up some interested studies suporting a "slight decrease" in prolactin levels. I guess it's worth a shot, but it's not intirely risk free either.
SIGNS OF TOXICITY
There are no known toxic effects, however, doses in very large amounts taken for a prolonged time can cause nerve damage. 2000-6000 mg/day of vitamin B6 can create serious side effects like impairment of sensory nerves including burning sensations, pain in limbs, numb skin, clumsiness and loss of balance
SIDE EFFECTS
(Possible) 200 mg/day has been reported to produce dependency, 2-6 grams taken over the course of several months can cause sensory neuropathy (numb extremities, loss of balance).
DRUG INTERACTIONS
There a are more than 40 drugs that interfere with vitamin B6, Desoxypyridoxine (antimetabolite), Isoniazid (tuberculostatic drug), Hydralazine (antihypertensive), Cycloserine (antibiotic), Penicillamine (Drug used for the treatment of Wilson's disease), Barbiturates, Levodopa. The following medications increase the excretion of Vitamin B6 and may cause anemia and peripheral neuritis: chloramphenicol, cycloserine, ethionamide, hydralazine, isoniazid, penicillamine, immunosuppressants (adrenocorticoids, azathioprine, chlorambucil, ACTH, cyclophosphamide, cyclosporine, mercaptopurine). Estrogen or oral contraceptives can increase the requirement for Vitamin B6 and may also cause depression. Vitamin B6 can interfere with levodopa's effect on Parkinsonism. High concentrations of Vitamin B6 can prevent or hasten the breakdown of Phenytoin. Tobacco use decreases the absorption of Vitamin B6.