In a message dated 96-08-01 00:14:39 EDT, you write: >Composicion >Cada ampolla de NERVOBION 5000 contiene: >Tiamina (D.C.I.) clorhidrato, 100 mg; Pirdoxina (D.C.I.) clorhidrato, 100mg; Each ampoule of NERVOBION 5000 contains: 100 mg of thiamine hydrochloride (Vitamin B1) 100 mg of pyridoxine hydrochloride (Vitamin B6) >Cianocobalamina (D.C.I.), 5mg; alcohol bencilico, 30mg; hidroxido sodico; 5 mg of cyanocobalamin (Vitamin B12; usually 1/1000 of that) 30 mg benzyl alcohol (likely a preservative) sodium hydroxide (to control acidity) >sal potasica del acido cianhidrico; agua para inyectable, c.s.p. 3 ml. > potassium cyanide (?) as the potassium salt of hydrocyanic acid (how much? and how toxic? in 3 ml of water for injection. >The RX advised the pill equivalent to be >1 X 100mg B1 Thiamine 5000% RDA >1 X 100mg B6 Pyridoxine 5000% RDA >5 X 1000mcg B12 Cyanocobalamin 16,666% RDA > >Continuing from the MERCK insert > >Contraindicaciones / Precauciones >Este medicamento no debe administrase, en ningun caso, por via endovenosa. Tampoco debe administrarse a pacientes con ipersensibilidad a algruno de los componentes del medicamento. > Contraindications/precautions This medication must in no case be administered intravenously. Nor should it be administered to patients who are hypersensitive to any components of this drug. >Interacciones >La piridoxina y sus derivados a dosis elevadas disminuyen el efecto >antiparkinsoniano de la L-dopa. (italics mine for effect) > Interactions High doses of pyridoxine and its derivatives diminish the antiparkinsonian effects of L-dopa. > (These vitamins are easily obtainable in the US, but not likely with CYANIDE; probably less effective than many other concoctions of the same type). Good luck. MM