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Drug Interactions between pravastatin and zidovudine

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

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Interactions between your drugs

Moderate

zidovudine pravastatin

Applies to: zidovudine and pravastatin

MONITOR: Prolonged use of certain nucleoside reverse transcriptase inhibitors may commonly cause myopathy, including rare cases of rhabdomyolysis. It is not known if the risk of myopathy is increased during concurrent administration of other agents associated with myopathy, including corticosteroids, fibric acid derivatives, HMG-CoA reductase inhibitors, chloroquine, hydroxychloroquine, penicillamine, and lipid-lowering doses of niacin.

MANAGEMENT: Clinicians should carefully consider the benefits versus risks prior to prescribing these agents together. Patients should be advised to promptly report any unexplained muscle pain, tenderness, or weakness, particularly if accompanied by malaise or fever. Therapy should be interrupted if myopathy is suspected, and discontinued if myopathy is diagnosed.

References

  1. (2001) "Product Information. Retrovir (zidovudine)." Glaxo Wellcome
  2. (2006) "Product Information. Tyzeka (telbivudine)." IDEC Pharmaceuticals Corporation

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Drug and food interactions

Moderate

pravastatin food

Applies to: pravastatin

MONITOR: Concomitant use of statin medication with substantial quantities of alcohol may increase the risk of hepatic injury. Transient increases in serum transaminases have been reported with statin use and while these increases generally resolve or improve with continued therapy or a brief interruption in therapy, there have been rare postmarketing reports of fatal and non-fatal hepatic failure in patients taking statins. Patients who consume substantial quantities of alcohol and/or have a history of liver disease may be at increased risk for hepatic injury. Active liver disease or unexplained transaminase elevations are contraindications to statin use.

MANAGEMENT: Patients should be counseled to avoid substantial quantities of alcohol in combination with statin medications and clinicians should be aware of the increased risk for hepatotoxicity in these patients.

References

  1. (2001) "Product Information. Pravachol (pravastatin)." Bristol-Myers Squibb
  2. (2001) "Product Information. Zocor (simvastatin)." Merck & Co., Inc
  3. (2001) "Product Information. Lescol (fluvastatin)." Novartis Pharmaceuticals
  4. (2001) "Product Information. Lipitor (atorvastatin)." Parke-Davis
  5. (2002) "Product Information. Altocor (lovastatin)." Andrx Pharmaceuticals
  6. (2003) "Product Information. Crestor (rosuvastatin)." AstraZeneca Pharma Inc
  7. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  8. Cerner Multum, Inc. "Australian Product Information."
  9. (2010) "Product Information. Livalo (pitavastatin)." Kowa Pharmaceuticals America (formerly ProEthic)
View all 9 references

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Minor

zidovudine food

Applies to: zidovudine

Food may have variable effects on the oral bioavailability of zidovudine. Fatty foods have been reported to decrease the rate and extent of zidovudine absorption following oral administration. In a study of 13 AIDS patients, mean peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) of zidovudine were 2.8 and 1.4 times higher, respectively, in fasting patients than in those administered the medication with breakfast. In addition, variations in plasma zidovudine concentrations were increased when administered in the fed state. In another study of eight patients, the time to reach peak concentration (Tmax) was increased from 0.68 to 1.95 hours, and Cmax was reduced by 50% when zidovudine was administered with a liquid high-fat meal relative to fasting. Protein meals can also delay the absorption and reduce the Cmax of zidovudine, although the extent of absorption is not significantly affected. The clinical significance of these alterations, if any, is unknown. The product labeling states that zidovudine may be taken with or without food.

References

  1. Lotterer E, Ruhnke M, Trautman M, et al. (1991) "Decreased and variable systemic availability of zidovudine in patients with AIDS if administered with a meal." Eur J Clin Pharmacol, 40, p. 305-8
  2. Unadkat JD, Collier AC, Crosby SS, et al. (1990) "Pharmacokinetics of oral zidovudine (azidothymidine) in patients with AIDS when administered with and without a high-fat meal." AIDS, 4, p. 229-32
  3. (2001) "Product Information. Retrovir (zidovudine)." Glaxo Wellcome
  4. Sahai J, Gallicano K, Garber G, et al. (1992) "The effect of a protein meal on zidovudine pharmacokinetics in HIV-infected patients." Br J Clin Pharmacol, 33, p. 657-60
View all 4 references

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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.

See also

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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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