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Drug Interactions between pegaspargase and Pyrelle HB

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

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Interactions between your drugs

Moderate

phenazopyridine pegaspargase

Applies to: Pyrelle HB (butabarbital / hyoscyamine / phenazopyridine) and pegaspargase

MONITOR: Concomitant use of asparaginase with other hepatotoxic agents may potentiate the risk of liver injury. Asparaginase-associated hepatotoxicity has been reported more commonly in adults than in children and has been strongly associated with obesity. Hepatomegaly, acute severe hepatotoxicity, and fatal liver failure have been reported with asparaginase treatment in adults. Also, asparaginase may increase the toxicity of drugs bound to plasma proteins or metabolized by the liver.

MANAGEMENT: The risk of additive hepatotoxicity should be considered when asparaginase is used with other hepatotoxic agents (e.g., alcohol, androgens, antituberculosis agents, azole antifungal agents, ACE inhibitors, macrolide antibiotics, nonsteroidal anti-inflammatory agents, nucleoside reverse transcriptase inhibitors, sulfonamides, thiazolidinediones, and statins). Liver function tests should be monitored at regular intervals during asparaginase treatment with or without other hepatotoxic drugs. Patients should be advised to seek medical attention if they experience potential symptoms of hepatotoxicity such as right upper quadrant pain, increasing abdominal size, fever, rash, itching, anorexia, nausea, vomiting, fatigue, malaise, dark urine, pale stools, and jaundice.

References (13)
  1. (2001) "Product Information. Oncaspar (pegaspargase)." Rhone Poulenc Rorer
  2. (2001) "Product Information. Elspar (asparaginase)." Merck & Co., Inc
  3. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  4. Cerner Multum, Inc. "Australian Product Information."
  5. "Product Information. Erwinaze (asparaginase Erwinia chrysanthemi)." EUSA Pharma
  6. Cerner Multum, Inc (2015) "ANVISA Bulário Eletrônico."
  7. (2019) "Product Information. Asparlas (calaspargase pegol)." Servier
  8. Al-Nawakil C, Willems L, Mauprivez C, et al. (2014) "Successful treatment of l-asparaginase-induced severe acute hepatotoxicity using mitochondrial cofactors." Leuk Lymphoma, 55, p. 1670-4
  9. Christ TN, Stock W, Knoebel RW (2018) "Incidence of asparaginase-related hepatotoxicity, pancreatitis, and thrombotic events in adults with acute lymphoblastic leukemia treated with a pediatric-inspired regimen." J Oncol Pharm Pract, 24, p. 299-308
  10. Jenkins R, Perlin E (1987) "Severe hepatotoxicity from Escherichia coli L-asparaginase." J Natl Med Assoc, 79, p. 775-9
  11. Lu G, Karur V, Herrington JD, Walker MG (2016) "Successful treatment of pegaspargase-induced acute hepatotoxicity with vitamin B complex and L-carnitine" Proc (Bayl Univ Med Cent), 29, p. 46-7
  12. Bodmer M, Sulz M, Stadlmann S, Droll A, Terracciano L, Krahenbuhl S (2006) "Fatal liver failure in an adult patient with acute lymphoblastic leukemia following treatment with L-asparaginase." Digestion, 74, epub
  13. Burke PW, Aldoss I, Lunning MA, et al. (2013) "High-grade PEGylated asparaginase-related hepatotoxicity occurrence in a pediatric-inspired adult acute lymphoblastic leukemia regimen does not necessarily predict recurrent hepatotoxicity in subsequent cycles." Blood, 122, p. 2671

Drug and food interactions

Major

butabarbital food

Applies to: Pyrelle HB (butabarbital / hyoscyamine / phenazopyridine)

GENERALLY AVOID: Concurrent acute use of barbiturates and ethanol may result in additive CNS effects, including impaired coordination, sedation, and death. Tolerance of these agents may occur with chronic use. The mechanism is related to inhibition of microsomal enzymes acutely and induction of hepatic microsomal enzymes chronically.

MANAGEMENT: The combination of ethanol and barbiturates should be avoided.

References (5)
  1. Gupta RC, Kofoed J (1966) "Toxological statistics for barbiturates, other sedatives, and tranquilizers in Ontario: a 10-year survey." Can Med Assoc J, 94, p. 863-5
  2. Misra PS, Lefevre A, Ishii H, Rubin E, Lieber CS (1971) "Increase of ethanol, meprobamate and pentobarbital metabolism after chronic ethanol administration in man and in rats." Am J Med, 51, p. 346-51
  3. Saario I, Linnoila M (1976) "Effect of subacute treatment with hypnotics, alone or in combination with alcohol, on psychomotor skills related to driving." Acta Pharmacol Toxicol (Copenh), 38, p. 382-92
  4. Stead AH, Moffat AC (1983) "Quantification of the interaction between barbiturates and alcohol and interpretation of fatal blood concentrations." Hum Toxicol, 2, p. 5-14
  5. Seixas FA (1979) "Drug/alcohol interactions: avert potential dangers." Geriatrics, 34, p. 89-102
Moderate

hyoscyamine food

Applies to: Pyrelle HB (butabarbital / hyoscyamine / phenazopyridine)

GENERALLY AVOID: Use of anticholinergic agents with alcohol may result in sufficient impairment of attention so as to render driving and operating machinery more hazardous. In addition, the potential for abuse may be increased with the combination. The mechanism of interaction is not established but may involve additive depressant effects on the central nervous system. No effect of oral propantheline or atropine on blood alcohol levels was observed in healthy volunteers when administered before ingestion of a standard ethanol load. However, one study found impairment of attention in subjects given atropine 0.5 mg or glycopyrrolate 1 mg in combination with alcohol.

MANAGEMENT: Alcohol should generally be avoided during therapy with anticholinergic agents. Patients should be counseled to avoid activities requiring mental alertness until they know how these agents affect them.

References (1)
  1. Linnoila M (1973) "Drug effects on psychomotor skills related to driving: interaction of atropine, glycopyrrhonium and alcohol." Eur J Clin Pharmacol, 6, p. 107-12

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.

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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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