Drug Interaction Report
1 potential interaction and/or warning found for the following 2 drugs:
- mibefradil
- Natesto (testosterone)
Interactions between your drugs
testosterone mibefradil
Applies to: Natesto (testosterone), mibefradil
MONITOR: Based on in vitro inhibition data, coadministration with mibefradil may increase the plasma concentrations of drugs that are substrates of CYP450 2D6 and/or 3A4. The mechanism is decreased clearance due to inhibition of these isoenzymes by mibefradil.
MANAGEMENT: Caution is advised when mibefradil is used concomitantly with drugs that undergo metabolism by CYP450 2D6 and/or 3A4, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever mibefradil is added to or withdrawn from therapy.
References (2)
- (2001) "Product Information. Posicor (mibefradil)." Roche Laboratories
- Varis T, Backman JT, Kivisto KT, Neuvonen PJ (2000) "Diltiazem and mibefradil increase the plasma concentrations and greatly enhance the adrenal-suppressant effect of oral methylprednisolone." Clin Pharmacol Ther, 67, p. 215-21
Drug and food interactions
No alcohol/food interactions were found with the drugs in your list. However, this does not necessarily mean no food interactions exist. Always consult your healthcare provider.
Therapeutic duplication warnings
No duplication 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
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| 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. | |
| No interaction information available. |
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Further information
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