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Retrovir (zidovudine) Disease Interactions

There are 4 disease interactions with Retrovir (zidovudine):

Major

Azt (Includes Retrovir) ↔ Bone Marrow Suppression

Severe Potential Hazard, High plausibility

Applies to: Bone Marrow Depression/Low Blood Counts

Zidovudine (AZT) may cause bone marrow toxicity, most commonly manifested as granulocytopenia and anemia, particularly in patients with advanced, symptomatic HIV disease. Thrombocytopenia not related to HIV may also occasionally occur. Zidovudine should be given with extreme caution to patients with preexisting bone marrow depression (indicated by a granulocyte count below 1000 cells/mm3 or hemoglobin less than 9.5 g/dL) or blood dyscrasias. Routine blood counts are recommended, and generally should occur more frequently in patients with advanced HIV disease. Dosage reductions may be necessary.

References

  1. "Product Information. Retrovir (zidovudine)." Glaxo Wellcome, Research Triangle Park, NC.
  2. Moore RD, Fortgang I, Keruly J, Chaisson RE "Adverse events from drug therapy for human immunodeficiency virus disease." Am J Med 101 (1996): 34-40
  3. Goldsmith JC, Irvine W "Reversible agranulocytosis related to azidothymidine therapy." Am J Hematol 30 (1989): 263-4
View all 4 references
Major

Azt/Telbivudine (Includes Retrovir) ↔ Myopathy

Severe Potential Hazard, High plausibility

Applies to: Myopathy, Myoneural Disorder

Prolonged use of certain nucleoside reverse transcriptase inhibitors (NRTIs) such as zidovudine and telbivudine may commonly cause myopathy, including rare cases of rhabdomyolysis. The myopathy may be dose-related and is characterized by persistent, unexplained muscle aches and/or weakness in conjunction with increases in creatine phosphokinase (CPK) values. Therapy with these NRTIs should be administered cautiously in patients with preexisting myopathy or a myoneural disorder, since it may delay the recognition or confound the diagnosis of a drug-induced musculoskeletal effect. Patients should be advised to report promptly any unusual muscle pain, tenderness or weakness, particularly if accompanied by malaise or fever. NRTI therapy should be interrupted if drug-related myopathy is suspected, and discontinued if myopathy is diagnosed.

References

  1. "Product Information. Retrovir (zidovudine)." Glaxo Wellcome, Research Triangle Park, NC.
  2. "Product Information. Tyzeka (telbivudine)." IDEC Pharmaceuticals Corporation, San Diego, CA.
Major

Nrtis (Includes Retrovir) ↔ Hepatotoxicity

Severe Potential Hazard, Moderate plausibility

Applies to: Alcoholism, Liver Disease

Hepatotoxicity including lactic acidosis, severe hepatomegaly with steatosis, fulminant hepatitis, and hepatic failure has rarely been associated with the use of nucleoside reverse transcriptase inhibitors (NRTIs) alone or in combination with other antiretroviral agents. Therapy with NRTIs should be administered cautiously in patients with preexisting liver disease, a history of alcohol abuse, or hepatitis. Therapy should be suspended if clinical or laboratory findings suggestive of lactic acidosis or pronouced hepatotoxicity occur.

References

  1. Dolin R, Lambert JS, Morse GD, et al "2',3'-dideoxyinosine in patients with AIDS or AIDS-related complex." Rev Infect Dis 12 (1990): s540-51
  2. Montaner JSG, Rachlis A, Beaulieu R, Gill J, Schlech W, Phillips P, Auclair C, Boulerice F, Schindzielorz A, Smaldone L, Wainber "Safety profile of didanosine among patients with advanced HIV disease who are intolerant to or deteriorate despite zidovudine therapy: results of the canadian open ddi treatment program." J Acquir Immune Defic Syndr 7 (1994): 924-30
  3. Yarchoan R, Mitsuya H, Pluda JM, et al "The National Cancer Institute phase I study of 2',3'-dideoxyinosine administration in adults with AIDS-related complex: analysis of activity and toxicity profiles." Rev Infect Dis 12 (1990): s522-33
View all 22 references
Major

Nrtis (Includes Retrovir) ↔ Renal Dysfunction

Severe Potential Hazard, High plausibility

Applies to: Renal Dysfunction

Patients with clinically significant renal impairment may be at greater risk for toxicities and adverse effects from nucleoside reverse transcriptase inhibitors (NRTIs) due to decreased drug clearance. Dosage adjustments are recommended. In addition, these patients should be monitored closely during NRTI therapy, and dosages adjusted further if necessary.

References

  1. "Product Information. HIVID (zalcitabine)." Roche Laboratories, Nutley, NJ.
  2. "Product Information. Zerit (stavudine)." Bristol-Myers Squibb, Princeton, NJ.
  3. "Product Information. Retrovir (zidovudine)." Glaxo Wellcome, Research Triangle Park, NC.
View all 4 references

Retrovir (zidovudine) drug Interactions

There are 309 drug interactions with Retrovir (zidovudine)

Retrovir (zidovudine) alcohol/food Interactions

There is 1 alcohol/food interaction with Retrovir (zidovudine)

Drug Interaction Classification

The classifications below are a general guideline only. It is difficult to determine the relevance of a particular drug interaction to any individual given the large number of variables.

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.

Do not stop taking any medications without consulting your healthcare provider.

Disclaimer: Every effort has been made to ensure that the information provided by Multum is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. Multum's information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill, knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Multum Information Services, Inc. does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. Copyright 2000-2016 Multum Information Services, Inc. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse, or pharmacist.

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