Symax FasTab
Generic name:hyoscyamine sulfate
Dosage form: tablet, orally disintegrating
Drug class:Anticholinergics / antispasmodics
Medically reviewed by Drugs.com. Last updated on Sep 21, 2021.
Disclaimer: This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA. For further information about unapproved drugs, click here.
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The Symax FasTab brand name has been discontinued in the U.S. If generic versions of this product have been approved by the FDA, there may be generic equivalents available.
Symax FasTab Description
Each round, green, mint flavored tablet, can be chewed or placed on tongue for disintegration and contains 0.125mg of hyoscyamine sulfate, USP.
Hyoscyamine sulfate is one of the principal anticholinergic/antispasmodic components of belladonna alkaloids.
(C17H23NO3)2•H2SO4•2H2O M.W. 712.85
The chemical name is Benzeneacetic acid, α-(hydroxymethyl)-, 8- methyl-8-azabicyclo[3.2.1]oct-3-yl ester, [3(S)-endo]-, sulfate (2:1), dihydrate.
INACTIVE INGREDIENTS
Inactive ingredients include: green dye LKB #LB-620, lactose monohydrate, magnesium stearate (veg.), mannitol, peppermint flavor, starch, and stearic acid.
Symax FasTab - Clinical Pharmacology
Hyoscyamine has actions similar to those of atropine, but is more potent in both its central and peripheral effects. This product inhibits gastrointestinal propulsive motility and decreases gastric acid secretions. This product controls excessive pharyngeal, tracheal, and bronchial secretion. This product is absorbed by chewing completely as well as by oral or sublingual administration.
Once absorbed, this product disappears rapidly from the blood and is distributed throughout the entire body. ...
