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Comtan Disease Interactions

There are 3 disease interactions with Comtan (entacapone).

Moderate

Dopamine agonists (applies to Comtan) hypotension

Moderate Potential Hazard, Moderate plausibility.

Dopamine agonists may impair the systemic regulation of blood pressure, with resultant orthostatic hypotension at any time, but especially during dose escalation. Additionally, patients with Parkinson's disease may have an impaired capacity to respond to an orthostatic challenge. For these reasons, patients with Parkinson's disease (or restless legs syndrome) who are being treated with dopaminergic agonists typically require careful monitoring for signs/symptoms of orthostatic hypotension, especially during dose escalation, and should be advised of this risk.

Moderate

Dopaminergic antiparkinsonian agents (applies to Comtan) psychosis

Moderate Potential Hazard, Moderate plausibility.

Ordinarily, patients with major psychotic disorder should not be treated with dopaminergic antiparkinsonian agents, because of the risk of exacerbating psychosis. Hallucinations and psychotic-like behavior have been reported with dopaminergic medications. In addition, certain medications used to treat psychosis may exacerbate the symptoms of Parkinson's disease and may decrease the effectiveness of these drugs. The use of bromocriptine in patients with severe psychotic disorders is not recommended.

Moderate

Entacapone (applies to Comtan) hepatic impairment

Moderate Potential Hazard, Moderate plausibility. Applicable conditions: Liver Disease

Entacapone should be used with caution in patients with hepatic impairment, as the AUC and Cmax of the drug approximately doubled in patients with documented liver disease compared to patients with normal liver function.

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Comtan drug interactions

There are 277 drug interactions with Comtan (entacapone).

Comtan alcohol/food interactions

There is 1 alcohol/food interaction with Comtan (entacapone).

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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