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Drug Interactions between aspirin / caffeine / dihydrocodeine and flavoxate

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

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Interactions between your drugs

Moderate

flavoxATE dihydrocodeine

Applies to: flavoxate and aspirin / caffeine / dihydrocodeine

MONITOR: Coadministration of opioids with anticholinergic agents may result in additive central nervous system (CNS), gastrointestinal, and genitourinary effects. The risk and/or severity of adverse effects such as sedation, dizziness, confusion, cognitive and psychomotor impairment, dry mouth, constipation, and urinary retention may increase. Severe constipation may lead to paralytic ileus in some cases.

MANAGEMENT: Caution and close monitoring of central nervous system, gastrointestinal, and genitourinary adverse effects are recommended when opioids are used with anticholinergic agents. Ambulatory patients should be counseled to avoid hazardous activities requiring mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References (19)
  1. (2002) "Product Information. Demerol (meperidine)." Sanofi Winthrop Pharmaceuticals
  2. (2002) "Product Information. Dolophine (methadone)." Lilly, Eli and Company
  3. (2001) "Product Information. Tylenol with Codeine (acetaminophen-codeine)." Janssen Pharmaceuticals
  4. "Product Information. Duragesic Transdermal System (fentanyl)." Janssen Pharmaceutica, Titusville, NJ.
  5. (2001) "Product Information. Ultram (tramadol)." McNeil Pharmaceutical
  6. (2001) "Product Information. OxyContin (oxycodone)." Purdue Frederick Company
  7. (2001) "Product Information. Kadian (morphine)." Astra-Zeneca Pharmaceuticals
  8. (2004) "Product Information. DepoDur (morphine liposomal)." Endo Laboratories LLC
  9. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  10. (2006) "Product Information. Opana (oxymorphone)." Endo Laboratories LLC
  11. (2009) "Product Information. Nucynta (tapentadol)." PriCara Pharmaceuticals
  12. (2010) "Product Information. Exalgo (hydromorphone)." Covidien
  13. (2016) "Product Information. Belbuca (buprenorphine)." Endo Pharmaceuticals Solutions Inc
  14. (2017) "Product Information. Alfentanil Hydrochloride (alfentanil)." Akorn Inc
  15. (2017) "Product Information. SUFentanil Citrate (sufentanil)." Akorn Inc
  16. (2017) "Product Information. Lortab (acetaminophen-hydrocodone)." Akorn Inc
  17. (2017) "Product Information. Levorphanol Tartrate (levorphanol)." Sentynl Therapeutics
  18. (2018) "Product Information. Naloxone HCl-Pentazocine HCl (naloxone-pentazocine)." Actavis U.S. (Amide Pharmaceutical Inc)
  19. (2018) "Product Information. Apadaz (acetaminophen-benzhydrocodone)." KemPharm, Inc
Minor

aspirin caffeine

Applies to: aspirin / caffeine / dihydrocodeine and aspirin / caffeine / dihydrocodeine

One study has reported that coadministration of caffeine and aspirin lead to a 25% increase in the rate of appearance and 17% increase in maximum concentration of salicylate in the plasma. A significantly higher area under the plasma concentration time curve of salicylate was also reported when both drugs were administered together. The exact mechanism of this interaction has not been specified. Physicians and patients should be aware that coadministration of aspirin and caffeine may lead to higher salicylate levels faster.

References (1)
  1. Yoovathaworn KC, Sriwatanakul K, Thithapandha A (1986) "Influence of caffeine on aspirin pharmacokinetics." Eur J Drug Metab Pharmacokinet, 11, p. 71-6

Drug and food interactions

Moderate

flavoxATE food

Applies to: flavoxate

GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of CNS-active agents. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.

MANAGEMENT: Patients receiving CNS-active agents should be warned of this interaction and advised to avoid or limit consumption of alcohol. Ambulatory patients should be counseled to avoid hazardous activities requiring complete mental alertness and motor coordination until they know how these agents affect them, and to notify their physician if they experience excessive or prolonged CNS effects that interfere with their normal activities.

References (4)
  1. Warrington SJ, Ankier SI, Turner P (1986) "Evaluation of possible interactions between ethanol and trazodone or amitriptyline." Neuropsychobiology, 15, p. 31-7
  2. Gilman AG, eds., Nies AS, Rall TW, Taylor P (1990) "Goodman and Gilman's the Pharmacological Basis of Therapeutics." New York, NY: Pergamon Press Inc.
  3. (2012) "Product Information. Fycompa (perampanel)." Eisai Inc
  4. (2015) "Product Information. Rexulti (brexpiprazole)." Otsuka American Pharmaceuticals Inc
Moderate

aspirin food

Applies to: aspirin / caffeine / dihydrocodeine

GENERALLY AVOID: The concurrent use of aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) and ethanol may lead to gastrointestinal (GI) blood loss. The mechanism may be due to a combined local effect as well as inhibition of prostaglandins leading to decreased integrity of the GI lining.

MANAGEMENT: Patients should be counseled on this potential interaction and advised to refrain from alcohol consumption while taking aspirin or NSAIDs.

References (1)
  1. (2002) "Product Information. Motrin (ibuprofen)." Pharmacia and Upjohn
Minor

caffeine food

Applies to: aspirin / caffeine / dihydrocodeine

The effect of grapefruit juice on the pharmacologic activity of caffeine is controversial. One report suggests that grapefruit juice increases the effect of caffeine. The proposed mechanism is inhibition of cytochrome P-450 metabolism of caffeine. However, a well-conducted pharmacokinetic/pharmacodynamic study did not demonstrate this effect. The clinical significance of this potential interaction is unknown.

References (2)
  1. (1995) "Grapefruit juice interactions with drugs." Med Lett Drugs Ther, 37, p. 73-4
  2. Maish WA, Hampton EM, Whitsett TL, Shepard JD, Lovallo WR (1996) "Influence of grapefruit juice on caffeine pharmacokinetics and pharmacodynamics." Pharmacotherapy, 16, p. 1046-52
Minor

aspirin food

Applies to: aspirin / caffeine / dihydrocodeine

One study has reported that coadministration of caffeine and aspirin lead to a 25% increase in the rate of appearance and 17% increase in maximum concentration of salicylate in the plasma. A significantly higher area under the plasma concentration time curve of salicylate was also reported when both drugs were administered together. The exact mechanism of this interaction has not been specified. Physicians and patients should be aware that coadministration of aspirin and caffeine may lead to higher salicylate levels faster.

References (1)
  1. Yoovathaworn KC, Sriwatanakul K, Thithapandha A (1986) "Influence of caffeine on aspirin pharmacokinetics." Eur J Drug Metab Pharmacokinet, 11, p. 71-6

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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