from september through december of 1986 , 256 patients participated in a multicenter , controlled , randomized double-blind trial which compared the clinical efficacy of diclofenac ( 50 mg ) with a combined therapy of diclofenac ( 50 mg ) and vitamins b1 , b6 , and b12 ( thiamine nitrate , pyridoxine hydrochloride , and cyanocobalamine , resp . ; in dosages of 50 mg , 50 mg , and 0.25 mg , resp . ) .
C0039840
vitamins b1
C0039844
thiamine nitrate