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Drug Interaction Report

2 potential interactions and/or warnings found for the following 2 drugs:

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Interactions between your drugs

Moderate

carvedilol bromfenac

Applies to: Coreg CR (carvedilol), DurAct (bromfenac)

MONITOR: Nonsteroidal anti-inflammatory drugs (NSAIDs) may attenuate the antihypertensive effect of beta-blockers. The proposed mechanism is NSAID-induced inhibition of renal prostaglandin synthesis, which results in unopposed pressor activity producing hypertension. In addition, NSAIDs can cause fluid retention, which also affects blood pressure. Indomethacin and piroxicam have been reported to have greater attenuating effects than other NSAIDs, and indomethacin effects may be significant in patients with eclampsia.

MANAGEMENT: Patients receiving a beta-blocker who require prolonged (greater than 1 week) concomitant therapy with an NSAID should have blood pressure monitored more closely following initiation, discontinuation, or change of dosage of the NSAID. The interaction is not expected to occur with low doses (e.g., low-dose aspirin) or intermittent short-term administration of NSAIDs.

References

  1. Salvetti A, Pedrinelli R, Alberici P, Magagna A, Abdel-Haq B (1984) "The influence of indomethacin and sulindac on some pharmacological actions of atenolol in hypertensive patients." Br J Clin Pharmacol, 17 Suppl 1, s108-11
  2. Ylitalo P, Pitkajarvi T, Pyykonen ML, Nurmi AK, Seppala E, Vapaatalo H (1985) "Inhibition of prostaglandin synthesis by indomethacin interacts with the antihypertensive effect of atenolol." Clin Pharmacol Ther, 38, p. 443-9
  3. Radack KL, Deck CC, Bloomfield SS (1987) "Ibuprofen interferes with the efficacy of antihypertensive drugs." Ann Intern Med, 107, p. 628-35
  4. Wong DG, Spence JD, Lamki L, Freeman D, McDonald JW (1986) "Effect of non-steroidal anti-inflammatory drugs on control of hypertension by beta-blockers and diuretics." Lancet, 1, p. 997-1001
  5. Durao V, Prata MM, Goncalves LM (1977) "Modification of antihypertensive effect of beta-adrenoceptor-blocking agents by inhibition of endogenous prostaglandin synthesis." Lancet, 2, p. 1005-7
  6. Abate MA, Neely JL, Layne RD, D'Allessandri R (1991) "Interaction of indomethacin and sulindac with labetalol." Br J Clin Pharmacol, 31, p. 363-6
  7. Salvetti A, Arzilli F, Pedrinelli R, Beggi P, Motolese M (1982) "Interaction between oxprenolol and indomethacin on blood pressure in essential hypertensive patients." Eur J Clin Pharmacol, 22, p. 197-201
  8. Durao V, Prata MM, Concalves LM (1977) "Modification of antihypertensive effect of B-adrenoceptor-blocking agents by inhibition of endogenous prostaglandin synthesis." Lancet, 2, p. 1005-7
  9. Hartmann D, Stief G, Lingenfelder M, Guzelhan C, Horsch AK (1995) "Study on the possible interaction between tenoxicam and atenolol in hypertensive patients." Arzneimittelforschung, 45-1, p. 494-8
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Drug and food interactions

Moderate

bromfenac food

Applies to: DurAct (bromfenac)

ADJUST DOSE: In-vivo studies have demonstrated that the absorption of bromfenac is greatly reduced if the drug is taken within three and one-half hours following a high fat meal. The concomitant administration of a high fat meal has led to a 75% reduction in peak plasma concentrations and a 60% reduction in total area under the curve. The mechanism has not been described.

MANAGEMENT: An increased dosage of bromfenac (from 25 to 50 mg) may be needed if a high fat meal is consumed. The clinician may want to warn the patient about subtherapeutic analgesic effects if high fat meals are regularly consumed.

References

  1. "Product Information. DurAct (bromfenac)." Wyeth-Ayerst Laboratories

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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

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.

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Further information

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