Product image of Modopar (Benserazide Hydrochloride, Levodopa) supplied by GNH India

Modopar

Active Ingredient:
Benserazide Hydrochloride, Levodopa
Origin:
EU

Modopar (Benserazide Hydrochloride, Levodopa)

Levodopa/Benserazide, the active ingredient in Modopar, is an antiparkinson agent presented as oral tablets for oral use. It is indicated for the treatment of Parkinson's disease by addressing dopamine deficiency in the central nervous system.
GNH India supplies Modopar as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Roche

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Indications & Clinical Uses

Modopar is an antiparkinson medication that targets the dopaminergic pathway in Parkinson's disease.

  • Parkinson's disease: improves motor symptoms such as bradykinesia, rigidity and tremor.
  • Early‑stage Parkinson's disease: enhances overall motor function and daily activity performance.
  • Advanced Parkinson's disease with motor fluctuations: provides more stable dopamine levels to reduce “off” periods.

How It Works

  • Levodopa is absorbed from the gastrointestinal tract and crosses the blood‑brain barrier, where it is decarboxylated to dopamine, replenishing depleted central dopamine stores. Benserazide, a peripheral dopa‑dec­arboxylase inhibitor, does not cross the barrier and prevents peripheral conversion of levodopa, thereby increasing the amount of levodopa that reaches the brain and enhancing its therapeutic effect.

Side Effects

Modopar may cause a range of adverse reactions that vary in frequency and severity.

Common Side Effects

  • Nausea
  • Vomiting
  • Dizziness or light‑headedness
  • Orthostatic hypotension
  • Headache
  • Insomnia

Serious or Rare Side Effects

  • Dyskinesia (involuntary movements)
  • Hallucinations or other psychiatric disturbances
  • Severe hypotension or arrhythmias
  • Neuroleptic malignant syndrome (very rare)
  • Severe allergic reactions such as skin rash or angioedema

Precautions & Warnings

When prescribing Modopar, clinicians should consider several safety measures.

  • Blood pressure monitoring: watch for orthostatic hypotension, especially at treatment initiation.
  • Renal function assessment: dose may need adjustment in patients with impaired renal clearance.
  • Psychiatric history review: patients with psychosis may be more susceptible to hallucinations.
  • Elderly patients: start at low doses and titrate slowly to reduce adverse events.
  • Discontinuation: avoid abrupt cessation to prevent withdrawal symptoms; taper gradually.
  • Store at ambient temperature: keep in the original container, protect from moisture and heat.

Avoid Interactions

Modopar can interact with several drug classes, requiring careful management.

Major Interactions (Avoid)

  • Non‑selective MAO inhibitors: may cause hypertensive crisis when combined with levodopa.
  • MAO‑B inhibitors plus other dopaminergic agents: increase risk of severe hypotension and dyskinesia.
  • Antipsychotics (e.g., haloperidol): can antagonize levodopa’s effect and worsen Parkinsonian symptoms.

Moderate Interactions (Monitor Closely)

  • Antihypertensive agents: additive blood‑pressure‑lowering effect may require dose adjustment.
  • Iron or calcium supplements: reduce levodopa absorption; separate administration by at least 2 hours.
  • High‑protein meals: may compete for transport across the gut wall, decreasing levodopa bioavailability.

Frequently Asked Questions

Modopar is a prescription medication that combines levodopa and benserazide to treat Parkinson's disease. It helps restore dopamine levels in the brain, reducing motor symptoms such as stiffness, tremor, and slowed movement, and is used across various stages of the disease.

Levodopa is a precursor of dopamine that crosses the blood‑brain barrier and is converted into dopamine within the central nervous system. Benserazide blocks peripheral conversion of levodopa, ensuring more of the drug reaches the brain where it compensates for the dopamine deficiency characteristic of Parkinson's disease.

The appropriate dose of Modopar is individualized by the prescribing clinician based on the patient’s disease severity, response to therapy, age, renal function and any concurrent medications. Dosage titration follows a careful schedule to balance symptom control with the risk of side effects.

The safety of Modopar during pregnancy or lactation has not been established, and the product is classified as having an unknown pregnancy category. It should only be used if the potential benefit justifies the potential risk to the fetus or infant, and this decision must be made by a qualified healthcare professional.

To place an order, submit an enquiry on the Modopar product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details (including any cold‑chain requirements) and necessary import documentation.

Modopar combines levodopa with benserazide, offering higher central availability of levodopa compared with levodopa alone. Compared with dopamine agonists, it generally provides stronger symptomatic relief but may have a higher risk of motor complications such as dyskinesia. Choice of therapy depends on individual patient factors and treatment goals.

Modopar tablets should be stored at ambient temperature, below 25 °C, in their original packaging to protect from moisture and light. Keep the product out of reach of children and avoid storing in humid or excessively hot environments to maintain potency.

Modopar is taken orally, usually with a glass of water. It is often recommended to take the medication on an empty stomach, 30 minutes before or one hour after meals, to improve absorption. The exact timing and frequency are determined by the prescribing clinician.

Serious risks include the development of dyskinesia (involuntary movements), severe hypotension, psychiatric effects such as hallucinations, and rare but life‑threatening conditions like neuroleptic malignant syndrome. Patients should be monitored regularly for these events, and any sudden changes should be reported to a healthcare provider immediately.

Modopar is contraindicated in patients with known hypersensitivity to levodopa, benserazide, or any excipients in the formulation. It should also be avoided in individuals taking non‑selective MAO inhibitors, and caution is advised for patients with severe cardiovascular disease, uncontrolled hypertension, or a history of malignant neuroleptic syndrome.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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