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Drug Interactions between silodosin and verteporfin

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

verteporfin silodosin

Applies to: verteporfin and silodosin

MONITOR: Drugs that decrease clotting, vasoconstriction, or platelet aggregation may interfere with the therapeutic effect of verteporfin. These agents may antagonize the physiologic responses to local damage of neovascular endothelium induced by activated verteporfin, which include the release of procoagulant and vasoactive factors that result in vessel occlusion. However, the clinical significance is unknown.

MANAGEMENT: If possible, agents such as anticoagulants, thrombolytics, platelet inhibitors, nonsteroidal anti-inflammatory drugs, ginkgo, dong quai, and vasodilators should be discontinued prior to verteporfin therapy. Otherwise, the potential for diminished efficacy of verteporfin should be considered.

References (2)
  1. (2001) "Product Information. Visudyne (verteporfin)." Valeant Pharmaceuticals
  2. (2002) "Product Information. Xatral (alfuzosin)." Sanofi-Synthelabo Canada Inc

Drug and food interactions

Moderate

silodosin food

Applies to: silodosin

ADJUST DOSING INTERVAL: Food may reduce the oral bioavailability of silodosin. The effect of a moderate-fat, moderate-calorie meal on silodosin pharmacokinetics was variable and decreased silodosin maximum plasma concentration (Cmax) by approximately 18% to 43% and systemic exposure (AUC) by 4% to 49% across three different studies. The maximum effect of food (i.e., coadministration with a high-fat, high-calorie meal) on the pharmacokinetics of silodosin was not evaluated. Safety and efficacy clinical trials for silodosin were always conducted in the presence of food intake.

MANAGEMENT: Patients should be instructed to take silodosin with a meal to reduce the risk of adverse events.

References (1)
  1. (2008) "Product Information. Rapaflo (silodosin)." Watson Pharmaceuticals

Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.

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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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