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| __NOTOC__
| | #REDIRECT [[Verapamil#Pharmacology]] |
| {{Verapamil}}
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| {{CMG}}; {{AE}} {{AK}}
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| CALAN SR (verapamil hydrochloride) is a calcium ion influx inhibitor (slow-channel blocker or calcium ion antagonist). CALAN SR is available for oral administration as light green, capsule-shaped, scored, film-coated tablets (caplets) containing 240 mg of verapamil hydrochloride; as light pink, oval, scored, film-coated tablets (caplets) containing 180 mg of verapamil hydrochloride; and as light violet, oval, film-coated tablets (caplets) containing 120 mg of verapamil hydrochloride. The caplets are designed for sustained release of the drug in the gastrointestinal tract; sustained-release characteristics are not altered when the caplet is divided in half.
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| The structural formula of verapamil HCl is:
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| [[image:verasr1.png]]
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| '''Benzeneacetonitrile, α-[3-[[2-(3,4-dimethoxyphenyl)ethyl]methylamino]propyl]-3,4-dimethoxy-α-(1-methylethyl) hydrochloride'''
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| Verapamil HCl is an almost white, crystalline powder, practically free of odor, with a bitter taste. It is soluble in water, chloroform, and methanol. Verapamil HCl is not chemically related to other cardioactive drugs. | |
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| Inactive ingredients include alginate, carnauba wax, hypromellose, [[magnesium ]]stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl pyrrolidone, talc, titanium dioxide, and coloring agents: 240 mg—D&C Yellow No. 10 Lake and FD&C Blue No. 2 Lake; 120 and 180 mg—iron oxide.<ref name="dailymed.nlm.nih.gov">{{Cite web | last = | first = | title = CALAN SR (VERAPAMIL HYDROCHLORIDE) TABLET, FILM COATED, EXTENDED RELEASE [G.D. SEARLE LLC DIVISION OF PFIZER INC] | url = http://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=acb6e57b-af44-432f-a4de-a293a2e20121#nlm34090-1 | publisher = | date = | accessdate = }}</ref>
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| ==References==
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| {{Reflist|2}}
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| [[Category:Cardiovascular Drugs]]
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| [[Category:Drugs]]
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