Drug Interactions between ertugliflozin and isoniazid / rifampin
This report displays the potential drug interactions for the following 2 drugs:
- ertugliflozin
- isoniazid/rifampin
Interactions between your drugs
rifAMPin isoniazid
Applies to: isoniazid / rifampin and isoniazid / rifampin
MONITOR CLOSELY: The risk of hepatotoxicity is greater when rifampin and isoniazid (INH) are given concomitantly, than when either drug is given alone. The proposed mechanism is rifampin's induction of isoniazid hydrolase, an enzyme involved in the conversion of INH to isonicotinic acid and hydrazine. Hydrazine is the proposed toxic metabolite of INH, which has been shown in animal studies to cause steatosis, hepatocyte vacuolation and glutathione depletion. Some studies have also shown that slow acetylators have a two-fold increased risk of developing antituberculosis drug-induced hepatotoxicity (ATDH) as compared with fast acetylators due to more available INH for direct hydrolysis to hydrazine. Theoretically, a similar reaction may occur with rifabutin and isoniazid. Additional risk factors for developing hepatotoxicity include patients with advanced age, malnutrition, existing hepatic impairment, daily alcohol consumption, female gender, HIV infection, extra-pulmonary tuberculosis and/or patients who are taking other potent CYP450-inducing agents.
MANAGEMENT: Caution and close monitoring should be considered if isoniazid (INH) is coadministered with rifampin or rifabutin. In cases where coadministration is required, careful monitoring of liver function, especially ALT and AST, should be done at baseline and then every 2 to 4 weeks during therapy, or in accordance with individual product labeling. Some manufacturers of INH recommend strongly considering its discontinuation if serum aminotransferase concentrations (AST or SGOT, ALT or SGPT) exceed 3 to 5 times the upper limit of normal. Product labeling for rifampin also recommends the immediate discontinuation of therapy if hepatic damage is suspected. INH product labeling suggests alternate drugs be used if hepatitis is attributed to INH in patients with tuberculosis. However, if INH must be used, it should only be resumed after the patient's symptoms and laboratory abnormalities have cleared. It should also be restarted in very small, gradually increasing doses and immediately withdrawn if there is any indication of recurrent liver involvement. Patients should be counseled to immediately report signs or symptoms consistent with liver damage and notified that prodromal symptoms usually consist of fatigue, weakness, malaise, anorexia, nausea, and/or vomiting.
References
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- Abadie-Kemmerly S, Pankey GA, Dalvisio JR (1988) "Failure of ketoconazole treatment of blastomyces dermatidis due to interaction of isoniazid and rifampin." Ann Intern Med, 109, p. 844-5
- Acocella G, Bonollo L, Garimoldi M, et al. (1972) "Kinetics of rifampicin and isoniazid administered alone and in combination to normal subjects and patients with liver disease." Gut, 13, p. 47-53
- Yamamoto T, Suou T, Hirayama C (1986) "Elevated serum aminotransferase induced by isoniazid in relation to isoniazid acetylator phenotype." Hepatology, 6, p. 295-8
- Steele MA, Burk RF, Des Prez RM (1991) "Toxic hepatitis with isoniazid and rifampin." Chest, 99, p. 465-71
- "Product Information. INH (isoniazid)." Ciba Pharmaceuticals, Summit, NJ.
- Sarma G, Immanuel C, Kailasam S, Narayana AS, Venkatesan P (1986) "Rifampin-induced release of hydrazine from isoniazid." Am Rev Respir Dis, 133, p. 1072-5
- (2001) "Product Information. Mycobutin (rifabutin)." Pharmacia and Upjohn
- (2001) "Product Information. Rifadin (rifampin)." Hoechst Marion Roussel
- Askgaard DS, Wilcke T, Dossing M (1995) "Hepatotoxicity caused by the combined action of isoniazid and rifampicin." Thorax, 50, p. 213-4
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- (2023) "Product Information. Isoniazid (isoniazid)." Chartwell RX, LLC.
- (2023) "Product Information. Isoniazid (Arrotex) (isoniazid)." Arrotex Pharmaceuticals Pty Ltd
- (2023) "Product Information. Isoniazid (isoniazid)." RPH Pharmaceuticals AB
- Sarma GR, Immanual C, Kailasam S, Narayana AS, Venkatesan P (2024) Rifampin-induced release of hydrazine from isoniazid. A possible cause of hepatitis during treatment of tuberculosis with regimens containing isoniazid and rifampin https://pubmed.ncbi.nlm.nih.gov/3717759/
- Tostmann A, Boeree MJ, Aarnoutse RE, De Lange WCM, Van Der Ven AJAM, Dekhuijzen R (2024) Antituberculosis drug-induced hepatotoxicity: concise up-to-date review https://onlinelibrary.wiley.com/doi/10.1111/j.1440-1746.2007.05207.x
- (2021) "Product Information. Isotamine (isoniazid)." Bausch Health, Canada Inc.
- (2022) "Product Information. Rifampin (rifAMPin)." Akorn Inc
- (2022) "Product Information. Rifampicin (rifampicin)." Mylan Pharmaceuticals Inc
- (2023) "Product Information. Rifadin (rifampicin)." Sanofi
- (2024) "Product Information. Rifadin (rifaMPICin)." Sanofi-Aventis Australia Pty Ltd
- (2019) "Product Information. Rofact (rifampin)." Bausch Health, Canada Inc.
isoniazid ertugliflozin
Applies to: isoniazid / rifampin and ertugliflozin
MONITOR: The efficacy of insulin and other antidiabetic agents may be diminished by certain drugs, including atypical antipsychotics, corticosteroids, diuretics, estrogens, gonadotropin-releasing hormone agonists, human growth hormone, phenothiazines, progestins, protease inhibitors, sympathomimetic amines, thyroid hormones, L-asparaginase, alpelisib, copanlisib, danazol, diazoxide, isoniazid, megestrol, omacetaxine, phenytoin, sirolimus, tagraxofusp, temsirolimus, as well as pharmacologic dosages of nicotinic acid and adrenocorticotropic agents. These drugs may interfere with blood glucose control because they can cause hyperglycemia, glucose intolerance, new-onset diabetes mellitus, and/or exacerbation of preexisting diabetes.
MANAGEMENT: Caution is advised when drugs that can interfere with glucose metabolism are prescribed to patients with diabetes. Close clinical monitoring of glycemic control is recommended following initiation or discontinuation of these drugs, and the dosages of concomitant antidiabetic agents adjusted as necessary. Patients should be advised to notify their physician if their blood glucose is consistently high or if they experience symptoms of severe hyperglycemia such as excessive thirst and increases in the volume or frequency of urination. Likewise, patients should be observed for hypoglycemia when these drugs are withdrawn from their therapeutic regimen.
References
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- Jori A, Carrara MC (1966) "On the mechanism of the hyperglycaemic effect of chlorpromazine." J Pharm Pharmacol, 18, p. 623-4
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Drug and food interactions
rifAMPin food
Applies to: isoniazid / rifampin
GENERALLY AVOID: Concurrent use of rifampin in patients who ingest alcohol daily may result in an increased incidence of hepatotoxicity. The increase in hepatotoxicity may be due to an additive risk as both alcohol and rifampin are individually associated with this adverse reaction. However, the exact mechanism has not been established.
ADJUST DOSING INTERVAL: Administration with food may reduce oral rifampin absorption, increasing the risk of therapeutic failure or resistance. In a randomized, four-period crossover phase I study of 14 healthy male and female volunteers, the pharmacokinetics of single dose rifampin 600 mg were evaluated under fasting conditions and with a high-fat meal. Researchers observed that administration of rifampin with a high-fat meal reduced rifampin peak plasma concentration (Cmax) by 36%, nearly doubled the time to reach peak plasma concentration (Tmax) but reduced overall exposure (AUC) by only 6%.
MANAGEMENT: The manufacturer of oral forms of rifampin recommends administration on an empty stomach, 30 minutes before or 2 hours after meals. Patients should be encouraged to avoid alcohol or strictly limit their intake. Patients who use alcohol and rifampin concurrently or have a history of alcohol use disorder may require additional monitoring of their liver function during treatment with rifampin.
References
- (2022) "Product Information. Rifampin (rifAMPin)." Akorn Inc
- (2022) "Product Information. Rifampicin (rifampicin)." Mylan Pharmaceuticals Inc
- (2023) "Product Information. Rifadin (rifampicin)." Sanofi
- (2024) "Product Information. Rifadin (rifaMPICin)." Sanofi-Aventis Australia Pty Ltd
- Peloquin CA, Namdar R, Singleton MD, Nix DE (2024) Pharmacokinetics of rifampin under fasting conditions, with food, and with antacids https://pubmed.ncbi.nlm.nih.gov/9925057/
- (2019) "Product Information. Rofact (rifampin)." Bausch Health, Canada Inc.
isoniazid food
Applies to: isoniazid / rifampin
GENERALLY AVOID: Concurrent use of isoniazid (INH) in patients who ingest alcohol daily may result in an increased incidence of both hepatotoxicity and peripheral neuropathy. The increase in hepatotoxicity may be due to an additive risk as both alcohol and INH are individually associated with this adverse reaction. INH-associated hepatotoxicity is believed to be due to an accumulation of toxic metabolites and may also be partly immune mediated, though the exact mechanisms are not universally agreed upon. INH is metabolized by N-acetyltransferase and CYP450 2E1. The rate of acetylation is genetically determined and generally classified as slow or rapid. Slow acetylators have been identified by some studies as having a higher risk of hepatotoxicity; therefore, this interaction may be more significant for patients who fall into this category. Other studies have postulated that alcohol-mediated CYP450 2E1 induction may play a role, as this isoenzyme is involved in INH metabolism and may be responsible for producing hepatotoxic metabolites. However, available literature is conflicting. The labeling for some INH products lists daily alcohol use or chronic alcoholism as a risk factor for hepatitis, but not all studies have found a significant association between alcohol use and INH-induced hepatotoxicity. Additionally, INH and alcohol are both associated with pyridoxine (B6) deficiency, which may increase the risk of peripheral neuropathy.
GENERALLY AVOID: Concomitant administration of isoniazid (INH) with foods containing tyramine and/or histamine may increase the risk of symptoms relating to tyramine- and/or histamine toxicity (e.g., headache, diaphoresis, flushing, palpitations, and hypotension). The proposed mechanism is INH-mediated inhibition of monoamine oxidase (MAO) and diamine oxidase (DAO), enzymes responsible for the metabolism of tyramine and histamine, respectively. Some authors have suggested that the reactions observed are mainly due to INH's effects on DAO instead of MAO or the amounts of histamine instead of tyramine present in the food. A Japanese case report recorded an example in 8 out of 25 patients on the tuberculosis ward who developed an accidental histamine poisoning after ingesting a fish paste (saury). Patients developed allergy-like symptoms, which started between 20 minutes and 2 hours after ingesting the food. A high-level of histamine (32 mg/100 g of fish) was confirmed in the saury paste and all 8 patients were both on INH and had reduced MAO concentrations. The 17 remaining patients were not on INH (n=5) or reported not eating the saury paste (n=12).
ADJUST DOSING INTERVAL: Administration with food significantly reduces oral isoniazid (INH) absorption, increasing the risk of therapeutic failure or resistance. The mechanism is unknown. Pharmacokinetic studies completed in both healthy volunteers (n=14) and tuberculosis patients (n=20 treatment-naive patients during days 1 to 3 of treatment) have resulted in almost doubling the time to reach INH's maximum concentration (tmax) and a reduction in isoniazid's maximum concentration (Cmax) of 42%-51% in patients who consumed high-fat or high-carbohydrate meals prior to INH treatment.
MANAGEMENT: The manufacturer of oral forms of isoniazid (INH) recommends administration on an empty stomach (i.e., 30 minutes before or 2 hours after meals). Patients should be encouraged to avoid alcohol or strictly limit their intake. Patients who use alcohol and INH concurrently or have a history of alcohol use disorder may require additional monitoring of their liver function during treatment with INH. Concomitant pyridoxine (B6) administration is also recommended to reduce the risk of peripheral neuropathy, with some authorities suggesting a dose of at least 10 mg/day. Patients should be advised to avoid foods containing tyramine (e.g., aged cheese, cured meats such as sausages and salami, fava beans, sauerkraut, soy sauce, beer, or red wine) or histamine (e.g., skipjack, tuna, mackerel, salmon) during treatment with isoniazid. Consultation of product labeling for combination products containing isoniazid and/or relevant guidelines may be helpful for more specific recommendations.
References
- Smith CK, Durack DT (1978) "Isoniazid and reaction to cheese." Ann Intern Med, 88, p. 520-1
- Dimartini A (1995) "Isoniazid, tricyclics and the ''cheese reaction''." Int Clin Psychopharmacol, 10, p. 197-8
- Uragoda CG, Kottegoda SR (1977) "Adverse reactions to isoniazid on ingestion of fish with a high histamine content." Tubercle, 58, p. 83-9
- Self TH, Chrisman CR, Baciewicz AM, Bronze MS (1999) "Isoniazid drug and food interactions." Am J Med Sci, 317, p. 304-11
- (2021) "Product Information. Isoniazid/Rifapentine 300 mg/300 mg (Macleods) (isoniazid-rifapentine)." Imported (India), 2
- (2023) "Product Information. Isoniazid (isoniazid)." Chartwell RX, LLC.
- (2023) "Product Information. Isoniazid (Arrotex) (isoniazid)." Arrotex Pharmaceuticals Pty Ltd
- (2023) "Product Information. Isoniazid (isoniazid)." RPH Pharmaceuticals AB
- Saukkonen JJ, Cohn DL, Jasmer RM, et al. (2006) "An official ATS statement: hepatotoxicity of antituberculosis therapy." Am J Respir Crit Care Med, 174, p. 935-52
- Bouazzi OE, Hammi S, Bourkadi JE, et al. (2024) First line anti-tuberculosis induced hepatotoxicity: incidence and risk factors. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5326068/
- Wang P, Pradhan K, Zhong XB, Ma X (2016) "Isoniazid metabolism and hepatoxicity." Acta Pharm Sin B, 6, p. 384-92
- Saktiawati AM, Sturkenboom MG, Stienstra Y, et al. (2016) "Impact of food on the pharmacokinetics of first-line anti-TB drugs in treatment naive TB patients: a randomized cross-over trial." J Antimicrob Chemother, 71, p. 703-10
- Hahn JA, Ngabirano C, Fatch R, et al. (2023) "Safety and tolerability of isoniazid preventive therapy for tuberculosis for persons with HIV with and without alcohol use." AIDS, 37, p. 1535-43
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- Sousou JM, Griffith EM, Marsalisi C, Reddy P (2024) Pyridoxine deficiency and neurologic dysfunction: an unlikely association. https://www.cureus.com/articles/188310-pyridoxine-deficiency-and-neurologic-dysfunction-an-unlikely-association?score_article=true#!/
- Miki M, Ishikawa T, Okayama H (2005) "An outbreak of histamine poisoning after ingestion of the ground saury paste in eight patients taking isoniazid in tuberculous ward." Intern Med, 44, p. 1133-6
- (2021) "Product Information. Isotamine (isoniazid)." Bausch Health, Canada Inc.
ertugliflozin food
Applies to: ertugliflozin
GENERALLY AVOID: Alcohol may cause hypoglycemia or hyperglycemia in patients with diabetes. Hypoglycemia most frequently occurs during acute consumption of alcohol. Even modest amounts can lower blood sugar significantly, especially when the alcohol is ingested on an empty stomach or following exercise. The mechanism involves inhibition of both gluconeogenesis as well as the counter-regulatory response to hypoglycemia. Episodes of hypoglycemia may last for 8 to 12 hours after ethanol ingestion. By contrast, chronic alcohol abuse can cause impaired glucose tolerance and hyperglycemia. Moderate alcohol consumption generally does not affect blood glucose levels in patients with well controlled diabetes. A disulfiram-like reaction (e.g., flushing, headache, and nausea) to alcohol has been reported frequently with the use of chlorpropamide and very rarely with other sulfonylureas.
MANAGEMENT: Patients with diabetes should avoid consuming alcohol if their blood glucose is not well controlled, or if they have hypertriglyceridemia, neuropathy, or pancreatitis. Patients with well controlled diabetes should limit their alcohol intake to one drink daily for women and two drinks daily for men (1 drink = 5 oz wine, 12 oz beer, or 1.5 oz distilled spirits) in conjunction with their normal meal plan. Alcohol should not be consumed on an empty stomach or following exercise.
References
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- Barnett AH, Spiliopoulos AJ, Pyke DA, et al. (1983) "Metabolic studies in chlorpropamide-alcohol flush positive and negative type 2 (non-insulin dependent) diabetic patients with and without retinopathy." Diabetologia, 24, p. 213-5
- Hartling SG, Faber OK, Wegmann ML, Wahlin-Boll E, Melander A (1987) "Interaction of ethanol and glipizide in humans." Diabetes Care, 10, p. 683-6
- (2002) "Product Information. Diabinese (chlorpropamide)." Pfizer U.S. Pharmaceuticals
- (2002) "Product Information. Glucotrol (glipizide)." Pfizer U.S. Pharmaceuticals
- "Product Information. Diabeta (glyburide)." Hoechst Marion-Roussel Inc, Kansas City, MO.
- Skillman TG, Feldman JM (1981) "The pharmacology of sulfonylureas." Am J Med, 70, p. 361-72
- (2002) "Position Statement: evidence-based nutrition principles and recommendations for the treatment and prevention of diabetes related complications. American Diabetes Association." Diabetes Care, 25(Suppl 1), S50-S60
- Cerner Multum, Inc. "UK Summary of Product Characteristics."
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
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. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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