Twindopa

Twindopa

carbidopa + levodopa

Manufacturer:

Kusum Healthcare

Distributor:

Kusum Healthcare
Concise Prescribing Info
Contents
Levodopa 250 mg, carbidopa monohydrate 25 mg
Indications/Uses
Dosage/Direction for Use
Patient not receiving levodopa Initially ½ tab once daily or bid after meal. If necessary, increase dose by gradual addition of ½ tab daily or alternate day till therapeutic effect is obtained. Patient receiving levodopa Initially 1 tab tid-qid in patients who receive levodopa >1,500 mg/day. Supportive therapy: individualized & adjusted gradually according to therapeutic effect. If necessary, may be increased to 1 tab tid-qid, or 1 tab daily or on alternate day. Max: 8 tab daily.
Administration
Should be taken with food.
Contraindications
Hypersensitivity. Discontinue MAOIs at least 2 wk before starting treatment. Narrow-angle glaucoma. May activate malignant melanoma in patients w/ suspicious undiagnosed skin lesions or history of melanoma. Severe psychoses. Pregnancy & lactation.
Special Precautions
Not recommended for drug-induced extrapyramidal reactions. Patients w/ severe CV or pulmonary disease, bronchial asthma, renal, hepatic or endocrine disease, or history of PUD. Monitor cardiac function w/ particular care in patients w/ history of MI who have residual atrial nodal, or ventricular arrhythmias. Somnolence & episodes of sudden sleep onset. Monitor all patients for development of mental changes, depression w/ suicidal tendencies, & other serious antisocial behavior. Patients w/ current psychoses. Dyskinesias. May cause involuntary movements & mental disturbances. History of severe involuntary movements or psychotic episodes. Carefully observe any abrupt dosage reduction or w/drawal particularly in patients who are also receiving neuroleptics. Impulse control disorders. Carefully observe for loss of antiparkinsonian effect when concomitantly used w/ psycho-active drugs eg, phenothiazines or butyrophenones. History of convulsions. Periodic evaluation of hepatic, haematopoietic, CV & renal function during extended therapy. Chronic wide-angle glaucoma. Continue therapy for as long as patient is permitted to take fluids & medication if general anaesth is required. Monitor for melanomas on a regular basis. +ve Coombs test. May cause false +ve result when dipstick is used to test for urinary ketone. Use of glucose oxidase methods may give false -ve results for glycosuria. May affect ability to drive or operate machinery. Women of childbearing potential. Not recommended in childn <18 yr.
Adverse Reactions
Dyskinesia including choreiform, dystonic & other involuntary movements & nausea. Muscle twitching & blepharospasm.
Drug Interactions
Postural hypotension w/ antihypertensive agents. HTN & dyskinesia w/ TCAs. May affect absorption & patient's response w/ anticholinergics. Decreased bioavailability w/ ferrous sulphate or ferrous gluconate. May reduce therapeutic effects of levodopa w/ dopamine D2 receptor antagonists (eg, phenothiazines, butyrophenones, & risperidone) & INH. Reversed beneficial effects of levodopa in Parkinson's disease w/ phenytoin & papaverine. Not recommended to be used w/ dopamine-depleting agents (eg, tetrabenazine) or other drugs known to deplete monoamine stores. Severe orthostatic hypotension w/ selegiline. May impair absorption w/ high protein diet.
MIMS Class
Antiparkinsonian Drugs
ATC Classification
N04BA02 - levodopa and decarboxylase inhibitor ; Belongs to the class of dopa and dopa derivative dopaminergic agents. Used in the management of Parkinson's disease.
Presentation/Packing
Form
Twindopa tab
Packing/Price
100's (P29/tab, P2,900/box)
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