House Dust Mite, Dermatophagoides farinae

Mite extract is a sterile solution containing the extractables of mite whole bodies in 0.25% sodium chloride, 0.125% sodium bicarbonate, 50% glycerol by volume and 0.4% phenol as a preservative. The mites are grown on a medium of yeast and… Continue Reading


HydrALAZINE hydrochloride, USP, is an antihypertensive, for oral administration. Its chemical name is 1 -hydrazinophthalazine monohydrochloride, and its structural formula is:                                                        CHN.HCl HydrALAZINE hydrochloride, USP is a white to off-white, odorless crystalline powder. It is soluble in water, slightly soluble… Continue Reading


Hydrocodone bitartrate and acetaminophen is supplied in tablet form for oral administration. Hydrocodone bitartrate is an opioid analgesic and antitussive and occurs as fine, white crystals or as a crystalline powder. It is affected by light. The chemical name is… Continue Reading

Heparin Sodium

Heparin is a heterogenous group of straight-chain anionic mucopolysaccharides, called glycosaminoglycans having anticoagulant properties. Although others may be present, the main sugars occurring in heparin are: (1) α-L-iduronic acid 2-sulfate, (2) 2-deoxy-2-sulfamino-α-D-glucose 6-sulfate, (3) β-D-glucuronic acid, (4) 2-acetamido-2-deoxy-α-D-glucose, and (5)… Continue Reading


HYPAQUE-CYSTO, brand of diatrizoate meglumine, is a water-soluble radiopaque diagnostic medium. It is a triiodinated benzoic acid derivative. It is constituted as a radiopaque iodinated anion (diatrizoate) and a radiolucent cation (meglumine). It is a colorless, microcrystalline solid which is… Continue Reading

Hydroxyzine hydrochloride

HydrOXYzine hydrochloride is designated chemically as 1-(p-chlorobenzhydryl) 4-[2-(2-hydroxy-ethoxy)-ethyl] piperazine dihydrochloride. Each tablet, for oral administration, contains 10 mg, 25 mg, or 50 mg of hydrOXYzine hydrochloride. Inactive ingredients: anhydrous lactose, colloidal silicon dioxide, croscarmellose sodium, FD&C Blue No. 2 Aluminum… Continue Reading

Hydroxyzine Pamoate

Hydroxyzine pamoate is designated chemically as 2-[2-[4-(-Chloro-α-phenylbenzyl)-1-piperazinyl]ethoxy]ethanol4,4′-methylenebis [3-hydroxy-2-naphthoate]. The structural formula is represented below: Each hydroxyzine pamoate capsule, for oral administration, contains the equivalent of 25 mg of hydroxyzine hydrochloride. In addition each capsule contains the following inactive ingredients: docusate… Continue Reading