_Petroxolinum Phenolis Camphoratum (Petrox. Phenol. Camph.), Camphorated Phenol Petroxolin, N.F._ (Camphorated Phenol Petrox).--Phenol (12.5%) and camphor (37.5%) in liquid petroxolin.
_*Phenol Liquefactum (Phenol Liq.), Liquefied Phenol, U.S.P._ (Liquefied Carbolic Acid).--Phenol liquefied by water (about 10%).
A colorless liquid, which may become reddish.
_Unguentum Phenolis (Ung. Phenol.), Ointment of Phenol, U.S.P._ (Ointment of Carbolic Acid).--Liquefied phenol (2.25%) in ointment.
=Phenol Iodatum (Phenol Iodat.), Iodized Phenol, N.F.= (Acidum Carbolicum Iodatum, N.F. III).--Iodine (20%) and phenol (60%) in glycerin.
=*Phenolphthaleinum (Phenolphthal.), Phenolphthalein, U.S.P.=
White or nearly white, odorless, tasteless powder. Almost insoluble in water; soluble in alcohol (1:13).
ACTION AND USES: Mild but efficient cathartic. It may cause some irritation to the rectum and lower bowel and very large doses have produced alarming secondary symptoms.
DOSAGE: 0.15 Gm. or 2-1/2 grains (U.S.P.).
_Trochisci Phenolphthaleini (Troch. Phenolphthal.), Troches of Phenolphthalein, N.F._--Each troche contains phenolphthalein (0.06 Gm. or 1 grain) with acacia, sugar, vanillin and carmine.
=*Phenylis Salicylas (Phenyl. Salicyl.), Phenyl Salicylate, U.S.P.= (Salol).
White powder, with an aromatic odor and a slight, characteristic taste. Slightly soluble in water (1:6670); freely soluble in alcohol (1:6), and in fixed or volatile oils.
ACTION AND USES: Intestinal antiseptic, by the liberation of phenol and salicylic acid.
DOSAGE: 0.3 Gm. or 5 grains (U.S.P.) best in powder; may be inclosed dry in capsules or cachets.
=*Phosphorus (Phosphor.), Phosphorus, U.S.P.=
Translucent, nearly colorless, waxy solid with a characteristic odor, becoming white, red or black on the surface on long keeping. Readily inflammable in air (preserved under water). Almost insoluble in water, to which phosphorus imparts its characteristic odor and taste; slightly soluble in dehydrated alcohol (1:400) and soluble in chloroform (1:17).
ACTION AND USES: In rickets for stimulation of bone formation. Its use as "nerve-food" is irrational.
DOSAGE: 0.5 mg. or 1/120 grain (U.S.P.). May be administered in pills or as phosphorated oil (1:100). The preparations are unreliable unless they have been recently made, since phosphorus rapidly loses its efficiency through oxidation.