Carbidopa
Levodopa
Antiparkinson Agents
Dihydroxyphenylalanine
Paraganglioma, Extra-Adrenal
Dopa Decarboxylase
Benserazide
Dysautonomia, Familial
Parkinson Disease
Aromatic-L-Amino-Acid Decarboxylases
Trihexyphenidyl
In vivo effects of new inhibitors of catechol-O-methyl transferase. (1/147)
1. The effects of two new synthetic compounds showing in vitro catechol-O-methyl transferase (COMT) inhibitor properties were studied in vivo and compared with the effects of nitecapone and Ro-41-0960. 2. QO IA (3-(3-hydroxy-4-methoxy-5-nitrobenzylidene)-2,4-pentanedione), QO IIR ([2-(3,4-dihydroxy-2-nitrophenyl)vinyl]phenyl ketone), nitecapone and Ro-41-0960 (30 mg kg(-1), i.p.) were given to reserpinized rats 1 h before the administration of L-DOPA/carbidopa (LD/CD, 50:50 mg kg(-1), i.p.). Locomotor activity was assessed 1 h later. All the COMT inhibitors (COMTI), with the exception of QO IA, markedly potentiated LD/CD reversal of reserpine-induced akinesia. Similar results were obtained when the COMTI were coadministered with LD/CD. The effect of compound QO IIR was dose-dependent (7.5-30 mg kg(-1), i.p.). 3. The COMTI (30 mg kg(-1), i.p.) potentiated LD/CD reversal of both catalepsy and hypothermia of reserpinized mice. 4. QO IIR, nitecapone and Ro-41-0960 (30 mg kg(-1), i.p.) reduced striatal 3-methyl-DOPA (3-OMD) levels and increased dopamine (DA) and dihydroxyphenylacetic acid (DOPAC) levels. Compound QO IA was devoid of any effect on striatal amine levels. In contrast to the other inhibitors, Ro-41-0961 reduced HVA levels as well. The effect of QO IIR on striatal amine levels was dose-dependent (7.5-60 mg kg(-1), i.p.) 5. These results suggest that the new compound QO IIR is an effective peripherally acting COMT inhibitor in vivo. (+info)COMT inhibition with tolcapone does not affect carbidopa pharmacokinetics in parkinsonian patients in levodopa/carbidopa (Sinemet). (2/147)
AIMS: Tolcapone is a novel catechol-O-methyltransferase (COMT) inhibitor used as an adjunct to levodopa/carbidopa or levodopa/benserazide therapy to improve treatment of Parkinson's disease. The aim of the current study was to investigate the potential effect of tolcapone on the pharmacokinetics of carbidopa. METHODS: This was an open-label study in 12 parkinsonian patients receiving optimal levodopa/carbidopa therapy and tolcapone 200 mg three times daily for 6 weeks. Blood samples were taken at baseline (i.e. before the first tolcapone intake) and after 1-2 weeks and 6 weeks so that carbidopa pharmacokinetics before and during tolcapone treatment could be assessed. RESULTS: No changes in any pharmacokinetic parameters of carbidopa were observed. The mean AUC(0,tau) and Cmax values at baseline were 0.39 microg ml-1 h and 0. 14 microg ml-1, respectively. During tolcapone treatment these values were on average 0.35 microg ml-1 h (AUC(0,tau), week 1-2), 0. 34 microg ml-1 h (AUC(0,tau), week 6 and 0.13 microg ml-1 (Cmax, weeks 1-2 and 6). tmax remained unchanged (approx. 2 h). CONCLUSIONS: These results indicate that tolcapone does not affect carbidopa elimination and that no interaction of any clinical relevance occurs between tolcapone and carbidopa. (+info)Feeding behavior in dopamine-deficient mice. (3/147)
Mice that cannot make dopamine (DA), a condition caused by the selective inactivation of tyrosine hydroxylase in dopaminergic neurons, are born normal but gradually become hypoactive and hypophagic, and die at 3 weeks of age. We characterized the feeding and locomotor responses of these DA-deficient (DA-/-) mice to 3, 4-dihyroxy-L-phenylalanine (L-DOPA) to investigate the relationship between brain DA levels and these complex behaviors. Daily administration of L-DOPA to DA-/- mice stimulated locomotor activity that lasted 6 to 9 hr; during that time the mice consumed most of their daily food and water. The minimal dose of L-DOPA that was sufficient to elicit normal feeding behavior in the DA-/- mice also restored their striatal DA to 9.1% of that in the wild-type (WT) mice at 3 hr; then DA content declined to <1% of WT levels by 24 hr. This dose of L-DOPA induced locomotor activity that exceeded that of treated WT mice by 5- to 7-fold, suggesting that DA-/- mice are supersensitive to DA. Unexpectedly, DA-/- mice manifested a second wave of activity 24 to 48 hr after L-DOPA treatment that was equivalent in magnitude to that of WT mice and independent of DA receptor activation. The DA-/- mice approached, sniffed, and chewed food during this second period of activity, but they ate <10% of that required for sustenance. Therefore, DA-/- mice can execute behaviors necessary to seek and ingest food, but they do not eat enough to survive. (+info)Population pharmacokinetics of tolcapone in parkinsonian patients in dose finding studies. (4/147)
AIMS: To use pharmacostatistical models to characterize tolcapone's pharmacokinetics in parkinsonian patients, and to identify any demographic subpopulations which may be at risk of either under- or over-exposure to this catechol-O-methyltransferase (COMT) inhibitor. METHODS: Four hundred and twelve patients participated in three multicentre, parallel, double-blind, placebo-controlled, dose-finding studies and received either placebo or tolcapone (50, 200 or 400 mg three times daily) in addition to levodopa/decarboxylase inhibitor therapy. Sparse blood samples were obtained from 275 patients for tolcapone assay and the concentrations (1414 in total) were analysed using the NONMEM program. RESULTS: The pharmacokinetic model which best described the data was a two-compartment open model with first-order absorption and possibly a lag-time. Tolcapone pharmacokinetics were shown to be stable, with no systematic trend between 2 and 6 weeks of treatment. The absorption of the drug was shown to be rapid and concomitant food intake had only a minor effect on the relative bioavailability (10-20% reduction compared with fasting). The overall clearance of tolcapone could be estimated with good precision (approximately 4. 5-5 l h-1 ), and none of the investigated covariates (e.g. sex, age, body weight) had any clinically significant influence on this parameter. The volume of distribution showed relatively high variability and was calculated to be approximately 30 l, leading to an estimated half-life in patients of approximately 5-8 h. CONCLUSIONS: Using sparse concentrations and mixed effect-effects modelling analysis it is possible to describe the pharmacokinetics of tolcapone in parkinsonian populations. The parameter estimates obtained agreed with those obtained from conventional pharmacokinetic studies and no subpopulation was shown to be at risk of either under- or over-exposure to tolcapone. (+info)The catechol-O-methyltransferase (COMT) inhibitor entacapone enhances the pharmacokinetic and clinical response to Sinemet CR in Parkinson's disease. (5/147)
OBJECTIVES: Entacapone is a specific, potent, peripherally acting catechol-O-methyltransferase (COMT) inhibitor. It has been shown to improve the bioavailability of plasma levodopa and extend its clinical effect when used as an adjunct to standard levodopa preparations, but there is little experience of the effect of entacapone on controlled release levodopa preparations. METHODS: A double blind, placebo controlled, single dose, randomised, cross over trial was performed in 14 patients with Parkinson's disease with motor fluctuations to investigate the clinical effect of a single dose of entacapone (200 mg) when administered with either standard levodopa-carbidopa (Sinemet) or controlled release levodopa-carbidopa preparations (Sinemet CR). RESULTS: When entacapone was administered with standard Sinemet the duration of the clinical response to standard Sinemet was longer in comparison with the response after placebo (p=0.02). Moreover, in the same patients, entacapone significantly increased the duration of the clinical response to Sinemet CR (p=0.05) without prolonging the latency of response or enhancing dyskinesias. CONCLUSIONS: These data confirm the clinical efficacy of entacapone-standard Sinemet combination. They also indicate that adding entacapone to controlled release levodopa preparations might provide a useful treatment option in patients with Parkinson's disease with motor fluctuations. A double blind clinical trial with a chronically administered entacapone-Sinemet CR combination is, however, required to verify this viewpoint. (+info)Metoclopramide and pimozide in Parkinson's disease and levodopa-induced dyskinesias. (6/147)
Metoclopramide is an antiemetic drug which occasionally produced acute dystonic reactions. Although known to interfere with central dopamine mechanisms, it is frequently used in Parkinson's disease to prevent levodopa-induced nausea and vomiting. In this study metoclopramide did not increase Parkinsonism or reduce levodopa-induced involuntary movements in patients with Parkinson's disease. Pimozide, by contrast, increased Parkinsonism and reduced involuntary movements. The capacity of metoclopramide to produce acute dyskinesias while being apparently free of Parkinsonism effects is pharmacologically unique and differentiates this drug from the phenothiazines and butyrophenones. (+info)The aromatic-L-amino acid decarboxylase inhibitor carbidopa is selectively cytotoxic to human pulmonary carcinoid and small cell lung carcinoma cells. (7/147)
The carcinoid tumor is an uncommon neuroendocrine neoplasm the hallmark of which is excessive serotonin production. In studying kinetics of tryptophan hydroxylase and aromatic-L-amino acid decarboxylase (AAAD) in human carcinoid hepatic metastases and adjacent normal liver (J. A. Gilbert et al, Biochem. Pharmacol., 50: 845-850, 1995), we identified one significant difference: the Vmax of carcinoid AAAD was 50-fold higher than that in normal liver. Here, we report Western and Northern analyses detecting large quantities of AAAD polypeptide and mRNA in human carcinoid primary as well as metastatic tumors compared with normal surrounding tissues. To assess the feasibility of targeting these high AAAD levels for chemotherapy, AAAD inhibitors carbidopa (alpha-methyl-dopahydrazine), alpha-monofluoromethyldopa (MFMD), and 3-hydroxybenzylhydrazine (NSD-1015) were incubated (72 h) with NCI-H727 human lung carcinoid cells. Carbidopa and MFMD were lethal (IC50 = 29 +/- 2 microM and 56 +/- 6 microM, respectively); NSD-1015 had no effect on proliferation. On exposure to other human tumor lines, carbidopa was lethal only to NCI-H146 and NCI-H209 small cell lung carcinoma (SCLC) lines (IC50 = 12 +/- 1 microM and 22 +/- 5 microM, respectively). Carbidopa (100 microM) decreased growth of (but did not kill) SK-N-SH neuroblastoma and A204 rhabdomyosarcoma cells and did not affect proliferation of DU 145 prostate, MCF7 breast, or NCI-H460 large cell lung carcinoma lines. The rank order of lines by AAAD activity was NCI-H146 > NCI-H209 > SK-N-SH > NCI-H727, whereas A204, DU 145, MCF7, and NCI-H460 had no measurable activity. For lung tumor lines (carcinoid, two SCLC, and one large cell lung carcinoma), AAAD activity was correlated with the potency of carbidopa-induced cytotoxicity. However, carcinoid cell death was not solely attributable to complete inhibition of either AAAD activity or the serotonin synthetic pathway. In further evaluating potential applications of these findings with carbidopa, we determined that sublethal doses of carbidopa produced additive cytotoxic effects in carcinoid cells in combination with etoposide and cytotoxic synergy in SCLC cells when coincubated with topotecan. (+info)Parkinsonian symptoms as an initial manifestation in a Japanese patient with acquired immunodeficiency syndrome and Toxoplasma infection. (8/147)
We studied a Japanese patient who developed parkinsonian symptoms over 3 months before the diagnosis of acquired immunodeficiency syndrome. Brain MRI showed multiple lesions with mass effect and ring enhancement in the basal ganglia and subcortical white matter suggesting Toxoplasma infection. Anti-Toxoplasma therapy and highly active antiretroviral therapy for 6 months allowed improvement of parkinsonism, brain MRI findings, and immune system. (+info)Symptoms of an extra-adrenal paraganglioma may include high blood pressure, palpitations, sweating, headaches, and weight loss. The exact cause of this condition is not known, but genetics may play a role in some cases. Treatment options vary depending on the location and size of the tumor, but they often involve surgery to remove the affected tissue.
Some of the symptoms of familial dysautonomia are similar to those found in other types of dysautonomia, such as difficulty regulating body temperature, blood pressure changes, and gastrointestinal disturbances. However, people with familial dysautonomia may also experience additional signs and symptoms that are unique to the condition.
Research has identified several genetic mutations or variations that can cause familial dysautonomia. These include:
1. Mutations in the EDNRB gene, which codes for the dopamine receptor beta subunit. This gene is important for regulating the activity of the autonomic nervous system.
2. Variations in the THAP11 gene, which codes for a protein that plays a role in the development and function of the autonomic nervous system.
3. Mutations in the KCNQ2 and KCNQ3 genes, which code for potassium channels that are important for regulating the activity of the autonomic nervous system.
Familial dysautonomia is a rare condition, and it can be difficult to diagnose because its symptoms can be similar to those of other conditions. However, a diagnosis may be made based on a combination of clinical findings, genetic testing, and the exclusion of other potential causes of the symptoms.
There is no cure for familial dysautonomia, but treatment options are available to help manage the symptoms. These may include medications to regulate blood pressure or heart rate, therapies to improve gastrointestinal function, and measures to prevent complications such as dehydration or heat stroke. In addition, individuals with familial dysautonomia may need to make lifestyle adjustments to accommodate their condition, such as avoiding extreme temperatures or taking regular breaks to rest.
Familial dysautonomia is a rare and complex condition that can have a significant impact on quality of life. However, with proper management and support, individuals with this condition can lead fulfilling lives.
Parkinson's disease is the second most common neurodegenerative disorder after Alzheimer's disease, affecting approximately 1% of the population over the age of 60. It is more common in men than women and has a higher incidence in Caucasians than in other ethnic groups.
The primary symptoms of Parkinson's disease are:
* Tremors or trembling, typically starting on one side of the body
* Rigidity or stiffness, causing difficulty with movement
* Bradykinesia or slowness of movement, including a decrease in spontaneous movements such as blinking or smiling
* Postural instability, leading to falls or difficulty with balance
As the disease progresses, symptoms can include:
* Difficulty with walking, gait changes, and freezing episodes
* Dry mouth, constipation, and other non-motor symptoms
* Cognitive changes, such as dementia, memory loss, and confusion
* Sleep disturbances, including REM sleep behavior disorder
* Depression, anxiety, and other psychiatric symptoms
The exact cause of Parkinson's disease is not known, but it is believed to involve a combination of genetic and environmental factors. The disease is associated with the degradation of dopamine-producing neurons in the substantia nigra, leading to a deficiency of dopamine in the brain. This deficiency disrupts the normal functioning of the basal ganglia, a group of structures involved in movement control, leading to the characteristic symptoms of the disease.
There is no cure for Parkinson's disease, but various treatments are available to manage its symptoms. These include:
* Medications such as dopaminergic agents (e.g., levodopa) and dopamine agonists to replace lost dopamine and improve motor function
* Deep brain stimulation, a surgical procedure that involves implanting an electrode in the brain to deliver electrical impulses to specific areas of the brain
* Physical therapy to improve mobility and balance
* Speech therapy to improve communication and swallowing difficulties
* Occupational therapy to improve daily functioning
It is important for individuals with Parkinson's disease to work closely with their healthcare team to develop a personalized treatment plan that addresses their specific needs and improves their quality of life. With appropriate treatment and support, many people with Parkinson's disease are able to manage their symptoms and maintain a good level of independence for several years after diagnosis.
Carbidopa
List of dopaminergic drugs
Monoamine precursor
Kufor-Rakeb syndrome
Aromatic L-amino acid decarboxylase inhibitor
Aryl hydrocarbon receptor
Alpha-Difluoromethyl-DOPA
Benserazide
Entacapone
Management of Parkinson's disease
Grandiose delusions
Tranylcypromine
Brasofensine
Droxidopa
Tolcapone
Akinetic mutism
Hydrazine (antidepressant)
Lesch-Nyhan syndrome
Parkinson's disease
Sepiapterin reductase deficiency
Adenosine A2A receptor antagonist
Catechol-O-methyltransferase inhibitor
Catechol-O-methyltransferase
Autosomal dominant GTP cyclohydrolase I deficiency
Tetrahydrobiopterin
Cabergoline
Adult development
Artificial cell
Safinamide
Michael J. Fox
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美国上市药品信息-P
Sinemet6
- Sinemet® combines levodopa with carbidopa , a drug that prevents the breakdown, allowing levodopa to reach the brain to increase dopamine levels. (peacehealth.org)
- However, combining levodopa with carbidopa prevents this adverse effect, so vitamin B6 supplements may safely be taken with Sinemet® (carbidopa/levodopa). (peacehealth.org)
- Sinemet is a combination of carbidopa and levodopa, which is used to treat symptoms of Parkinson's disease. (firstmedstore.com)
- Sinemet (Carbidopa/Levodopa) is used for treating symptoms associated with Parkinson disease and parkinsonism-like symptoms. (firstmedstore.com)
- Sinemet CR is a combination product that contains two substances that are levodopa and carbidopa. (canadapharmacy.com)
- Sinemet medication comes in two dosages, containing either 50 mg carbidopa and 200 mg levodopa, or 25 mg carbidopa and 100 mg levodopa. (canadapharmacy.com)
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Parkinson's5
- The combination of levodopa and carbidopa is used to treat the symptoms of Parkinson's disease and Parkinson's-like symptoms that may develop after encephalitis (swelling of the brain) or injury to the nervous system caused by carbon monoxide poisoning or manganese poisoning. (medlineplus.gov)
- When you begin taking levodopa and carbidopa suspension, your doctor will adjust your morning and continuous infusion doses and possibly the doses of your other Parkinson's disease medications to best control your symptoms. (medlineplus.gov)
- The U.S. Food and Drug Administration (FDA) will review Amneal Pharmaceuticals ' application for IPX203, its extended-release carbidopa/levodopa (CD/LD) tablet for Parkinson's disease . (parkinsonsnewstoday.com)
- Patients with advanced Parkinson's disease need to take their daily levodopa, carbidopa and entacapone medication as many as up to eight to ten times per day. (orion.fi)
- Determination of the motor status of patients with advanced Parkinson's disease under levodopa-carbidopa intestinal gel using a machine learning model. (cdc.gov)
Levodopa and carbidopa7
- The combination of levodopa and carbidopa comes as a regular tablet, an orally disintegrating tablet, an extended-release (long-acting) tablet, and an extended-release (long-acting) capsule to take by mouth. (medlineplus.gov)
- Take levodopa and carbidopa at around the same times every day. (medlineplus.gov)
- Take levodopa and carbidopa exactly as directed. (medlineplus.gov)
- no longer available in the US) to the combination of levodopa and carbidopa, follow your doctor's instructions. (medlineplus.gov)
- You will probably be told to wait at least 12 hours after your last dose of levodopa to take your first dose of levodopa and carbidopa. (medlineplus.gov)
- Your doctor may start you on a low dose of levodopa and carbidopa and gradually increase your dose of the regular or orally disintegrating tablet every day or every other day as needed. (medlineplus.gov)
- Levodopa and carbidopa suspension comes in a single-use cassette to connect to the pump that will control the amount of medication you will receive during your infusion. (medlineplus.gov)
Entacapone carbidopa2
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Orally1
- The company's application was based on data that showed the therapy significantly extended the time that patients did not observe involuntary movement, compared to orally administered carbidopa-levodopa. (reuters.com)
Pramipexole1
- It was observed that along with physiotherapy, drugs used to manage PD were levodopa (14%), carbamazepine (12%), quetiapine (12%), haloperidol (11%), pramipexole (10%), trihexyphenidyl HCl (10%), carbidopa (8%), amlodipine (8%)andclonazepam (8%).Conclusions:Disgrace exists in the personal life and social context of the PD patients which also unfavourably affects their psychosocial aspects of life. (who.int)
Enzyme2
- A study in animals has found that carbidopa inhibits an enzyme involved in the synthesis of niacin in the body. (peacehealth.org)
- To achieve the best clinical benefit, levodopa is combined with two important additional agents, carbidopa inhibiting the enzyme DDC (dopa-decarboxylase), and entacapone inhibiting the enzyme COMT (catechol-O-methyltransferase). (orion.fi)
Medications2
- Carbidopa is in a class of medications called decarboxylase inhibitors. (medlineplus.gov)
- Total monthly costs for PD medications carbidopa-levodopa and amantadine remained low during the study years. (medscape.com)
Breakdown3
- Carbidopa helps prevent the breakdown of levodopa before it can reach the brain and take effect. (firstmedstore.com)
- It can also be used together with carbidopa, a molecule that helps avoid the breakdown of levodopa outside the brain. (parkinsonsnewstoday.com)
- Carbidopa carries out its function by preventing the breakdown of levodopa while moving through the bloodstream to reach the brain. (canadapharmacy.com)
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Substances1
- Three different strength combinations of the three active substances, levodopa, entacapone and carbidopa, are being registered. (orion.fi)
Prescription4
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Drug1
- Iron supplements taken with carbidopa may interfere with the action of the drug. (peacehealth.org)
Patients2
- Several cases of scleroderma-like illness have been reported in patients using carbidopa and 5-HTP for intention myoclonus. (peacehealth.org)
- Our objectives were to prospectively follow up some cohorts of patients diagnosed to have PVS by a reliable and valid criteria and to look out for any response to l-dopa/carbidopa administration. (edu.au)
Combination1
- The combination of carbidopa and levodopa is used to treat Parkinson symptoms such as muscle stiffness, tremors, spasms, and poor muscle control. (firstmedstore.com)
Start1
- If you are already taking levodopa (Larodopa, Dopar), you must stop taking it at least 12 hours before you start taking carbidopa and levodopa. (firstmedstore.com)
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Improve1
- 5-HTP and carbidopa have been reported to improve intention myoclonus (a neuromuscular disorder) in some human cases but not others. (peacehealth.org)
Therapy2
- Conclusion: There were some remarkable responses to l-dopa/carbidopa after about 2 to 6 months of therapy. (edu.au)
- The therapy, ABBV-951, is a formulation of carbidopa-levodopa, the standard of care for the disease. (reuters.com)
Inhibits decarboxylation of peripheral levodopa1
- Carbidopa inhibits decarboxylation of peripheral levodopa. (nih.gov)
Receiving carbidopa and levodopa1
- Supplemental pyridoxine (vitamin B 6 ) can be given to patients when they are receiving carbidopa and levodopa concomitantly or as SINEMET* CR (Carbidopa-Levodopa) Sustained-Release or SINEMET* (Carbidopa-Levodopa). (nih.gov)
SINEMET2
- Carbidopa is combined with levodopa in SINEMET (Carbidopa-Levodopa) and SINEMET CR (Carbidopa-Levodopa) Sustained-Release tablets. (nih.gov)
- There is the sense that Sinemet or carbidopa-levodopa or Madopar, depending on where you live in the world, is still an oldie but goodie. (medscape.com)
Entacapone4
- Clinical trials in healthy, human volunteers given single doses of up to 400 mg entacapone with carbidopa/levodopa showed linear, dose-dependent increases in the AUC for levodopa. (medscape.com)
- [ 39 , 52 ] Doses of entacapone 800 mg led to a decrease in AUC for levodopa as well as carbidopa, suggesting effects of entacapone on carbidopa absorption and subsequent decrease in levodopa bioavailability. (medscape.com)
- A study of entacapone administered with carbidopa/levodopa CR showed less robust enhancement of levodopa AUC, probably due to the more rapid absorption and elimination of entacapone compared with carbidopa/levodopa CR. (medscape.com)
- The first report of repeated doses of entacapone in PD was an open-label trial of 200 mg entacapone given with carbidopa/levodopa three- to four-times daily for 1 week. (medscape.com)
Dopamine3
- Carbidopa reduces the amount of levodopa required to produce a given response by about 75% and, when administered with levodopa, increases both plasma levels and the plasma half-life of levodopa, and decreases plasma and urinary dopamine and homovanillic acid. (nih.gov)
- In clinical pharmacologic studies, simultaneous administration of separate tablets of carbidopa and levodopa produced greater urinary excretion of levodopa in proportion to the excretion of dopamine when compared to the two drugs administered at separate times. (nih.gov)
- The introduction of carbidopa to levodopa therapy, which inhibits the peripheral decarboxylation of levodopa to dopamine, counteracts the metabolic-enhancing effect of pyridoxine. (nih.gov)
Dose1
- At least twelve hours should elapse between the last dose of levodopa and initiation of therapy with LODOSYN (Carbidopa) and levodopa. (nih.gov)
Tablet2
Doses2
- Carbidopa has not been demonstrated to have any overt pharmacodynamic actions in the recommended doses. (nih.gov)
- It does not appear to cross the blood-brain barrier readily and does not affect the metabolism of levodopa within the central nervous system at doses of carbidopa that are recommended for maximum effective inhibition of peripheral decarboxylation of levodopa. (nih.gov)
Tablets2
Clinical1
- Also provided is guidance for dosing of and conversion to extended release carbidopa-levodopa as well as a discussion of its place in the clinical practice. (nih.gov)
Medication1
- I was talking with a colleague last week who also attended the meeting, and she boiled it down to the message that carbidopa-levodopa is still our best medication. (medscape.com)
Brain1
- Since its decarboxylase-inhibiting activity is limited primarily to extracerebral tissues, administration of carbidopa with levodopa makes more levodopa available for transport to the brain. (nih.gov)