Vent roto my

[ven-trotf-o-me) [venter, belly; to fiii, a cut]. Celiotomy. Venule. Venula;::>:’ -ul,ven’ -u-lah)[yenula, dim. oil en::, a vein]. A small vein. Veratrin a mixture:of:r-at’-rin). Veratrin a alkaloids obtained from(U.theS.seeds P.), of Asagrsea officinal is (Sabadilla), of the order Liliacese. It is a local irritant, and produces tetanic convulsions followed by paralysis; first stimulates, then paralyzes the vasomotor center. It is used externally, in the form of an ointment, in rheumatism, gout, and neuralgia. Preparations: Unguentum veratrinsr U. S. P.. B.P.; Oleatum veratrime (U. S. P.). Veratroii:.. -f-roi’-din). See Veratrum. Veratrum of the order zcr-at’-ruvi). Liliaceae. The A rhizome genus and of plants roots of V. viride, American hellebore (V. viride, U. S. P.: Veratri virid is rhizoma. B. P..contain the alkaloids jervin and veratroidin. The former is a depre ant to the vasomotor centers and the motor centers of the spinal cord. In toxic doses it produces slowne of the pulse, fall in blood-pre ure, relaxation, epileptiform convulsions, paralysis, and death from failure of the respiration. Veratroidin is irritant and produces vomiting and purging: it is also depre ant to the motor centers of the spinal cord and to the pulse. When veratrum viride is administered the combined action of the alkaloids is obtained, and consists chiefly in slowing of the pulse and le ening of blood-pre ure, with vomiting in the case of large doses. It is employed in sthenic inflammations, as pneumonia, peritonitis, in puerperal eclampsia, and in exce ive cardiac hypertrophy. Preparations and doses: Extractum veratri virid is fluidum (U. S. P.), n\j-iij (0.065-0.20); Tinctura veratri virid is iU. S. P.. B. P.), ch741.xhtml h 654