Pajjiż: Stati Uniti
Lingwa: Ingliż
Sors: NLM (National Library of Medicine)
pentoxifylline (UNII: SD6QCT3TSU) (pentoxifylline - UNII:SD6QCT3TSU)
UPSHER-SMITH LABORATORIES, INC.
pentoxifylline
400 mg
PRESCRIPTION DRUG
PENTOXIL- PENTOXIFYLLINE TABLET, FILM COATED, EXTENDED RELEASE UPSHER-SMITH LABORATORIES, INC. ---------- PENTOXIL (PENTOXIFYLLINE EXTENDED-RELEASE TABLETS, USP) 400 MG RX ONLY DESCRIPTION Pentoxil (Pentoxifylline Extended-release Tablets, USP) for oral administration contain 400 mg of the active drug and the following inactive ingredients: D&C Red No. 27 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, hypromellose USP, magnesium stearate NF, polyethylene glycol NF, polysorbate 80 NF, povidone USP, silicon dioxide NF and titanium dioxide USP, in an extended-release formulation. Pentoxifylline is a tri-substituted xanthine derivative designated chemically as 3,7-Dihydro-3,7- dimethyl-1-(5-oxohexyl)-1_H_-purine-2,6-dione that, unlike theophylline, is a hemorrheologic agent, i.e., an agent that affects blood viscosity. Pentoxifylline is soluble in water and ethanol, and sparingly soluble in toluene. The structural formula is: MEETS USP DISSOLUTION TEST 3. CLINICAL PHARMACOLOGY MODE OF ACTION: Pentoxifylline and its metabolites improve the flow properties of blood by decreasing its viscosity. In patients with chronic peripheral arterial disease, this increases blood flow to the affected microcirculation and enhances tissue oxygenation. The precise mode of action of pentoxifylline and the sequence of events leading to clinical improvement are still to be defined. Pentoxifylline administration has been shown to produce dose-related hemorrheologic effects, lowering blood viscosity, and improving erythrocyte flexibility. Leukocyte properties of hemorrheologic importance have been modified in animal and _in vitro_ human studies. Pentoxifylline has been shown to increase leukocyte deformability and to inhibit neutrophil adhesion and activation. Tissue oxygen levels have been shown to be significantly increased by therapeutic doses of pentoxifylline in patients with peripheral arterial disease. PHARMACOKINETICS AND METABOLISM: After oral administration in aqueous solution pentoxifylline is almost completely absorbed. It under Aqra d-dokument sħiħ