Levodopa+Carbidopa
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Molecule Summary
| Uses | Parkinson's disease |
| Therapy | Anti-Parkinsonian |
| Side Effects | Nausea, vomiting, dry mouth, headache |
Medicines
available
19k pincodes
Molecule Description
Levodopa+Carbidopa is a medication primarily used in the treatment of Parkinson's disease, a central nervous system disorder that affects movement and coordination. The disease is characterised by symptoms such as tremors, spasms, muscle stiffness, difficulty in walking, and poor balance. These symptoms occur due to low dopamine levels in the brain, as the neurons responsible for producing dopamine gradually die.
Levodopa+Carbidopa contains two active ingredients:
Levodopa
and
Carbidopa
. Levodopa, a central nervous system agent, is converted into dopamine in the brain, which helps improve movement and control. Carbidopa, a decarboxylase inhibitor, works by preventing the breakdown of Levodopa in the bloodstream, ensuring that more Levodopa reaches the brain for effectiveness.
This medication should be taken exactly as prescribed by your doctor, and its use should continue as directed. Common side effects include nausea, vomiting, loss of appetite, light-headedness, lowered blood pressure, confusion, and dyskinesia (involuntary muscle movements). These side effects usually resolve over time and do not require medical attention unless they persist or worsen. If you experience severe or persistent side effects, consult your doctor promptly.
It is important to inform your doctor if you are allergic to any components of the medication or have a medical history that includes glaucoma, asthma, dizziness, mental illness, or intense urges such as gambling, overeating, or increased sexual impulses. Additionally, Levodopa+Carbidopa should not be taken during pregnancy or breastfeeding without medical advice. Levodopa must also be discontinued at least 12 hours before starting this medication. Always communicate openly with your doctor about your medical condition and any concerns before beginning Levodopa+Carbidopa.
Uses
Levodopa+Carbidopa is used for the treatment of Parkinson's disease characterised by impaired posture and balance, shakiness, stiffness of muscle and inability to perform basic body movements.
Contraindications
When should one not use Levodopa+Carbidopa
- If you are allergic to levodopa, carbidopa or any ingredients of this medicine.
- If you have a history of skin cancer called melanoma or the presence of moles on the skin, which a doctor has not clinically checked.
- If you are taking medicines called MAOIs (such as rasagiline); these should be stopped at least 14 days before you start taking this medicine.
- If you have raised pressure in the eyes, a condition called narrow-angle glaucoma.
- If you are diagnosed with any serious psychiatric illness.
Side effects
Common side effects of this drug are:
- Uncontrolled movements
- Headache
- Nausea
- Vomiting
- Dry mouth
- Diarrhoea
- Reduced appetite
- Drowsiness
Precautions and Warnings
Pregnancy
Breast Feeding
Driving
Alcohol
Other General Warnings
Talk to your doctor if
- You experience mood changes, sleep attacks or excessive sleepiness.
- You have a history of fits.
- You have or had an ulcer in your stomach or intestine.
- You have had a heart attack, heart disorder, or breathing problems.
- You have had kidney, liver or hormonal problems.
- You have a due surgery or operation.
- You are pregnant, planning a pregnancy or breastfeeding; use this medicine only on your doctor's advice.
- If you have an eye condition called 'glaucoma', you will need to have regular checks on the pressure in your eye.
Mode of Action
How Does It Work?
Levodopa+Carbidopa offers relief in symptoms of Parkinson's disease by increasing the levels of dopamine in the brain. Levodopa gets converted into Dopamine. This dopamine gives relief from symptoms of Parkinson's disease. Carbidopa helps in maintaining an optimal level of levodopa by inhibiting its breakdown by enzymes before it reaches the brain.
Interactions
Interactions with other medicines
- Some medicines can affect the way Levodopa+Carbidopa works or this medicine itself can reduce the effectiveness of other medicines taken at the same time.
- Tell your doctor about all the medicines, supplements or herbals you are currently taking or might take to avoid any possible interaction.
- Especially if you are taking any other medicine to treat Parkinson's disease.
- If you are taking any iron preparations, it may decrease the effectiveness of Levodopa+Carbidopa when used concomitantly.
- Medicine for any psychiatric illness may cause worsening of side effects; the dose needs to be adjusted.
- The patient's response should be monitored when taking Levodopa+Carbidopa with anticholinergic preparations like Benzatropine and Procyclidine.
- You may experience low blood pressure on standing suddenly from lying posture if you are on any antihypertensives.
- Medicine for tuberculosis and epilepsy may require a change in dosage.
Interactions with food items
Levodopa+Carbidopa can be taken with or without food. However, it is generally better to take it with a small meal or snack to minimise nausea.
Dosage
Overdose
If you happen to take more than the prescribed dose of Levodopa+Carbidopa, report to the nearest hospital immediately. It may cause rapid, irregular heartbeats, uncontrolled muscular twitching and loss of consciousness.
Missed a Dose
If you missed any dose of Levodopa+Carbidopa, take it as soon as you remember it. If it is almost time for your next dose, skip the missed dose and take the next dose at the scheduled time. Do not take a double dose to compensate for the missed dose.
Frequently Asked Questions (FAQs)
Articles
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References:
- Lactmed - Levodopa [Internet]. Ncbi.nlm.nih.gov. 2022 [cited 7 June 2026]
- MedlinePlus. Levodopa and Carbidopa: MedlinePlus Drug Information [Internet]. National Library of Medicine (US); 2024 [cited 7 June 2026]
- PubChem. Carbidopa [Internet]. National Library of Medicine (US), National Center for Biotechnology Information; 2024 [cited 7 June 2026]
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