Rolandi E, Masturzo P, Barreca T
Clin Endocrinol (Oxf). 1979 Jan;10(1):93-5. doi: 10.1111/j.1365-2265.1979.tb03037.x.
A single i.v. administration of cimetidine, an histamine receptor antagonist, produced a significant increase in serum prolactin (PRL) levels in fifteen normal men. This effect was suppressed by pretreatment with levodopa or bromocriptine.