490

RHEUM.—RHUBARB.

The root {Radix Rhapontici veri seu Rha-barbari Rhapontici) is employed. It is pre-sented in two different forms; one of the va-rieties is as large as the first, or less, of aligneous appearance, of a reddish-grey co-lour externally, veined, when broken trans-versely, with red and white, forming veryclose striae, radiating from the centre to thecircumference; it has a very astringent andmucilaginous taste, and tinges the salivayellow, hut does not grit between the teeth ;its odour is analogous to that of rhubarbbut is more disagreeable ; its powder is yel-low with a reddish tinge. The other va-riety is about three or four inches in lengthand two or three in thickness, of a less lig-neous appearance, of a light yellow colour,purer or less reddish ; its fracture presentsa radiated appearance, its taste is astringent,and mucilaginous, its odour is similar tothat of rhubarb, and it does not grit be-tween the teeth.

It contains, according to Henri, muchmore starch, and less oxalate of lime thanrhubarb, and also more colouring principle,which in this is red. Hornemann has dis-covered a peculiar substance in it which hecalls Rhaponticine.

It is tonic and laxative.

The following is the only formula of thePontic rhubarb :

EXTRACT OF PONTIC RHUBARB.

Extractum Rhapontici. (Form. Hop. Fr.)

R. Dried Root of Pontic Rhubarb,

one part.Cold Water, four parts.

Infuse for twenty-four hours, then strainwith slight expression, and infuse the resi-due in

Cold Water, two parts.

Strain. Mix the infusions, and evaporatein a water-bath to the consistence of an ex-tract.

I. Preparations which contain Rhubarb insubstance.

TORRIFIED RHUBARB.

Rhabarbarum tostum. (Hisp. ; Lusit. ;Sard.)

R. Rhubarb, in powder, any quantity.Expose it in a shallow iron pan to theheat of a moderate fire, constantly stirringit with a spatula, till it has acquired a browncolour ; then let it cool, and preserve it.

diaturbith species with rhubarb.(Palat.; Wirtem. ; Van Mons)

R. Rhubarb,

Indian Jalap,

> of each, two ounces.

one ounce,of each,half anounce.

ten drops.

Hermodactyls,

Sulphuretted Scammony

Supertartrate of Potass,

Seeds of Violet,Make a powder, and add,

Oil of Cinnamon,Preserve. (Palat. ; Wirtem.)R. Cinnamon, one part.

SeeXof Anise, } of each > three P arts -Scammony, four parts.

Hermodactyls, "1 , , . ,Indian Jalap, f °f each, eight parts.Rhubarb, ten parts.

Make a powder. (Van Mons)Dose, from one to two scruples. It is

purgative and anthelmintic.

absorbent powder. (Ellis)

R.

Prepared Crab's Claws, one dram.

Rhubarb, two scruples.

Mix, and divide into four parcels. — Dose,one or two in the day.

(Ellis)of each, one dram.

stimulant powder

R. Rhubarb, "I

Ipecacuanha, JMix. — It is applied with advantage to in-dolent ulcers.

powder of rhubarb and of supertar-trate OF POTASS.

Pulvis Rhei cum Tártaro, Pulvis catharti-cus seu Rhei compositus seu lenitivas seulenitivus tartarisaius. (Mil. Copen. ;Fuld. ; Hann. ; Sainte-Marie ; Ph.Syph.)

R. Rhubarb, of each,

Supertartrate of Potass, / half anounce.

Make a powder. (Mil. Copen.)Dose, a scruple.

Ph. Syph. prescribes twenty grains ofrhubarb, and ten of supertartrate, for onedose. — Sainte-Marie — an equal part each,of rhubarb and of tartrate of potass.R. Rhubarb,

Supertartrate of Potass.Orange Peel,Make a powder. (Hann.)

Fuld. prescribes two drams of rhubarb,half an ounce of supertartrate and fourscruples of orange peel.

Dose, from half a dram to one dram.

powder of rhubarb and of sulphateof potass.

Pulvis Rhei compositus seu anti-hecticus seupurgans. (Cast. Borus. ; Saunders ;Swediaur)

of each,one ounce.