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ALFENTA® Janssen-Ortho Alfentanil HCl Opioid Analgesic – Adjunct to Anesthesia Action And Clinical Pharmacology: Alfentanil is a potent opioid analgesic/anesthetic with a rapid onset and short duration of action. The analgesic potency of alfentanil is 1/4 to 1/3 that of fentanyl. Low to moderate doses of alfentanil in short-stay surgical procedures provide good analgesic protection against hemodynamic responses to surgical stress and rapid recovery. Hemodynamic stability and duration of action…

ALDOMET® Injection ALDOMET® Tablets MSD Methyldopa HCl Methyldopa Antihypertensive Indications And Clinical Uses: The treatment of arterial hypertension. May be employed in a general treatment program in conjunction with a diuretic and/or other antihypertensive drugs as needed for proper response in patients with hypertension of various severity. May be employed as the initial agent in the treatment of hypertension in those patients for which treatment should not be started with…

ALDORIL®-15 ALDORIL®-25 MSD Methyldopa – Hydrochlorothiazide Antihypertensive Action And Clinical Pharmacology: In Aldoril, 2 antihypertensive agents with complementary properties are combined for the treatment of hypertension. Methyldopa: Methyldopa, an antihypertensive agent, is an aromatic-amino-acid decarboxylase inhibitor in animals and in man. Although the mechanism of action has yet to be conclusively demonstrated, the antihypertensive effect of methyldopa probably is due to its metabolism to alpha-methyl-norepinephrine, which then lowers arterial pressure…

ALERTONIC® Hoechst Marion Roussel Pipradrol – Vitamin Compound Indications And Clinical Uses: Short-term use in cases of vitamin B deficiencies accompanied by functional fatigue. Contra-Indications: As with other drugs with CNS stimulating action, pipradrol is contraindicated in hyperactive, agitated, or anxious patients and depressive illness, chorea, or obsessive compulsive states. Precautions: Pregnancy: Although animal reproductive studies have not indicated adverse effects, this drug should not be used during the first…

ALBERT® OXYBUTYNIN Albert Pharma Oxybutynin Chloride Anticholinergic – Antispasmodic Agent Action And Clinical Pharmacology: Oxybutynin is a tertiary amine anticholinergic agent which exerts antimuscarinic as well as direct antispasmodic action on smooth muscle. In vitro studies have shown that its anticholinergic effects are weaker than those of atropine, but it possesses greater antispasmodic activity. No blocking effects occur at skeletal neuromuscular junctions or in autonomic ganglia (no antinicotinic effects). In…

ALBERT® TIAFEN ALBERT® TIAFEN SR Albert Pharma Tiaprofenic Acid Anti-inflammatory – Analgesic Action And Clinical Pharmacology: Tiaprofenic acid, a propionic acid derivative, is a nonsteroidal anti-inflammatory agent with analgesic and antipyretic properties. Its mechanism of action, as with other nonsteroidal anti-inflammatory agents, is not yet completely known. Tiaprofenic acid is an inhibitor of prostaglandin synthetase enzymes which are known to be associated with inflammation and pain. The therapeutic effect of…

ALDACTONE® Searle Spironolactone Aldosterone Antagonist Action And Clinical Pharmacology: Spironolactone is a specific pharmacologic antagonist of aldosterone, acting primarily through competitive binding of receptors at the aldosterone-dependent, sodium-potassium exchange site in the distal convoluted renal tubule. Spironolactone causes increased amounts of sodium and water to be excreted, while potassium loss is minimized. Spironolactone acts both as a diuretic and as an antihypertensive drug by this mechanism. It may be given…

ALDACTAZIDE 25® ALDACTAZIDE 50® Searle Spironolactone – Hydrochlorothiazide Aldosterone Antagonist – Diuretic Action And Clinical Pharmacology: A combination of two diuretic agents with different but complementary mechanisms and sites of action. Spironolactone component helps to minimize the potassium loss which may be induced by the thiazide component. Spironolactone is a specific pharmacologic antagonist of the adrenal mineralocorticoid, aldosterone, acting primarily through competitive binding with receptors at the aldosterone-dependent sodium/potassium exchange…

ADVIL® COLD & SINUS Whitehall-Robins Ibuprofen – Pseudoephedrine HCl Analgesic – Antipyretic – Decongestant Action And Clinical Pharmacology: Ibuprofen has exhibited analgesic and antipyretic activity in animal studies designed to specifically demonstrate these effects. Ibuprofen has been shown to have no glucocorticoid-like activity. Pseudoephedrine is an orally effective nasal decongestant when administered in doses of 60 mg/dose, up to 240 mg/day. In order to comply with the flexible dosing schedule…

ADENOCARD® Fujisawa Adenosine Antiarrhythmic Action And Clinical Pharmacology: Adenosine is an endogenous nucleoside occurring in all cells of the body. When injected i.v. adenosine slows atrioventricular (AV) nodal conduction, can interrupt the reentry pathways through the AV node and can restore normal sinus rhythm in patients with paroxysmal supraventricular tachycardia (PSVT), including PSVT associated with Wolff-Parkinson-White syndrome. Adenosine is antagonized competitively by methylxanthines such as caffeine and theophylline and potentiated…