Carbidopadrug info
carbidopa 25 MG / levodopa 100 MG Oral Tablet
What it is used for
Carbidopa and levodopa tablets are indicated in the treatment of Parkinson's disease, post-encephalitic parkinsonism, and symptomatic parkinsonism that may follow carbon monoxide intoxication or manganese intoxication. Carbidopa allows patients treated for Parkinson's disease to use much lower doses of levodopa. Some patients who responded poorly to levodopa have improved on carbidopa and levodopa tablets. This is most likely due to decreased peripheral decarboxylation of levodopa caused by administration of carbidopa rather than by a primary effect of carbidopa on the nervous system. Carbidopa has not been shown to enhance the intrinsic efficacy of levodopa. Carbidopa may also reduce nausea and vomiting and permit more rapid titration of levodopa.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective April 1, 2022. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
Description
Carbidopa and Levodopa tablet, USP is a combination of carbidopa and levodopa for the treatment of Parkinson's disease and syndrome. Carbidopa, USP an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.24. It is designated chemically as (-)-L-α-hydrazino-α-methyl-β-(3,4-dihydroxybenzene) propanoic acid monohydrate. Its molecular formula is C 10 H 14 N 2 O 4 ∙H 2 O, and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa which has a molecular weight of 226.23. Levodopa, USP an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.19. It is designated chemically as (-)-L-α-amino-β-(3,4-dihydroxybenzene) propanoic acid. Its molecular formula is C 9 H 11 NO 4, and its structural formula is: Carbidopa and Levodopa is supplied as tablets in three strengths: Carbidopa and Levodopa tablets, USP 10 mg/100 mg, containing 10 mg of carbidopa and 100 mg of levodopa. Carbidopa and Levodopa tablets, USP 25 mg/100 mg, containing 25 mg of carbidopa and 100 mg of levodopa. Carbidopa and Levodopa tablets, USP 25 mg/250 mg, containing 25 mg of carbidopa and 250 mg of levodopa. Inactive ingredients are hydroxypropyl cellulose, pregelatinized starch, crospovidone, microcrystalline cellulose, and magnesium stearate. Carbidopa and levodopa tablets, USP 10 mg/100 mg and 25 mg/250 mg also contain FD&C Blue #2. Carbidopa and levodopa tablets, USP 25 mg/100 mg also contain D&C Yellow #10. Chemical Structure Chemical Structure
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective April 1, 2022. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.
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