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Comtan (entacapone) is used as an add-on therapy for adults with Parkinson's disease who are taking carbidopa-levodopa and experiencing end-of-dose wearing-off, meaning their symptoms return before the next scheduled dose.

Comtan inhibits the enzyme catechol-O-methyltransferase (COMT), which normally breaks down levodopa in the bloodstream before it can reach the brain. By blocking this enzyme, Comtan allows more levodopa to enter the brain and extends the duration of each carbidopa-levodopa dose.

No. Comtan is not effective on its own for Parkinson's disease and must always be taken in combination with carbidopa-levodopa. It is specifically designed to enhance and prolong the effect of that medication.

Common side effects include nausea, diarrhea, urine discoloration (orange-brown), dizziness, and increased dyskinesia (involuntary movements). These often relate to the enhanced levodopa effect and may require a dose adjustment of carbidopa-levodopa.

Possibly. Because Comtan increases the amount of levodopa reaching the brain, your physician may lower your carbidopa-levodopa dose to reduce the risk of increased dyskinesia or other levodopa-related side effects.

Comtan can interact with monoamine oxidase inhibitors (MAOIs), certain antidepressants, and drugs metabolized by COMT. You should share a complete list of all your medications with your physician before starting Comtan.

Doctronic uses an AI-guided evaluation to gather your symptoms and medical history, which is then reviewed by a licensed physician. If treatment is appropriate, the physician creates a personalized treatment plan, which may include a prescription sent to your pharmacy.

Yes. Doctronic's care is provided by licensed physicians whose consultations are doctor-reviewed and audited for quality. The platform is HIPAA-compliant, and your health information is kept secure and private.