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Rx Item-RYTARY carbidopa/levodopa ORAL CAPSULE ER 23.75MG/95MG CAP 100 BY AMNEA

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Rx Item-RYTARY carbidopa/levodopa ORAL CAPSULE ER 23.75MG/95MG CAP 100 BY AMNEA

$384.67$359.99

NDC No. 64896-0661-01 64896-661-01 6489666101 64896066101 UPC/GTIN No. 3-64896-66101-2 364896661012 364896-661012 MPN No.066201 Only Lic.-Physician, Pharmacy, Dentist, Drug Mfg, Dist., Gov, Hospital, Lic.Lab, Naturalist, Naturopath, NP, Optometrist, & Pharmacist, PA, Physical Therapist, Podiatrist, Research Co., Uni., VA, Vet & Wholesalers In Scope Of their Practice Can Order Rx Item.

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SINEMET- carbidopa and levodopa tablet
Merck Sharp & Dohme Corp.

DESCRIPTION

SINEMET® (carbidopa levodopa) is a combination of carbidopa and levodopa for the treatment of Parkinson's disease and syndrome.

Carbidopa, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.3. It is designated chemically as (-)-L-?-hydrazino-?-methyl-?-(3,4-dihydroxybenzene) propanoic acid monohydrate. Its empirical formula is C10 H14 N2 O4 •H2O.
Tablet content is expressed in terms of anhydrous carbidopa which has a molecular weight of 226.3.

Levodopa, an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.2. It is designated chemically as (-)-L-?-amino-?-(3,4-dihydroxybenzene) propanoic acid. Its empirical formula is C9 H11 NO4.
CLINICAL PHARMACOLOGY

Mechanism of Action
Parkinson's disease is a progressive, neurodegenerative disorder of the extrapyramidal nervous system affecting the mobility and control of the skeletal muscular system. Its characteristic features include resting tremor, rigidity, and bradykinetic movements. Symptomatic treatments, such as levodopa therapies, may permit the patient better mobility.

Current evidence indicates that symptoms of Parkinson's disease are related to depletion of dopamine in the corpus striatum. Administration of dopamine is ineffective in the treatment of Parkinson's disease apparently because it does not cross the blood-brain barrier. However, levodopa, the metabolic precursor of dopamine, does cross the blood-brain barrier, and presumably is converted to dopamine in the brain. This is thought to be the mechanism whereby levodopa relieves symptoms of Parkinson's disease.

INDICATIONS AND USAGE

SINEMET is 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 SINEMET. 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.
DOSAGE AND ADMINISTRATION

The optimum daily dosage of SINEMET must be determined by careful titration in each patient. SINEMET tablets are available in a 1:4 ratio of carbidopa to levodopa (SINEMET 25-100) as well as 1:10 ratio (SINEMET 25-250 and SINEMET 10-100). Tablets of the two ratios may be given separately or combined as needed to provide the optimum dosage.

Studies show that peripheral dopa decarboxylase is saturated by carbidopa at approximately 70 to 100 mg a day. Patients receiving less than this amount of carbidopa are more likely to experience nausea and vomiting.

Usual Initial Dosage
Dosage is best initiated with one tablet of SINEMET 25-100 three times a day. This dosage schedule provides 75 mg of carbidopa per day. Dosage may be increased by one tablet every day or every other day, as necessary, until a dosage of eight tablets of SINEMET 25-100 a day is reached.

If SINEMET 10-100 is used, dosage may be initiated with one tablet three or four times a day. However, this will not provide an adequate amount of carbidopa for many patients. Dosage may be increased by one tablet every day or every other day until a total of eight tablets (2 tablets q.i.d.) is reached.

RX376754
Rx Item-RYTARY carbidopa/levodopa ORAL C
RX376754

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Rx Item-RYTARY carbidopa/levodopa ORAL C
Visit AmericanPharmaWholesale.com for over 100,000 items of Health & Beauty at Retail@Wholesale prices.

Only Lic.-Physician,Pharmacy,Dentist,Drug Mfg,Dist.,Gov,Hospital,Lic.Lab,Naturalist,Naturopath,NP,Optometrist,Pharmacist,PA,Physical Therapist,Podiatrist,Research Co.,Uni.,VA,Vet & Wholesalers in scop
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