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Drug Interactions between aspirin / oxycodone and piroxicam

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

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Interactions between your drugs

Major

aspirin piroxicam

Applies to: aspirin / oxycodone and piroxicam

GENERALLY AVOID: The use of piroxicam in combination with another nonsteroidal anti-inflammatory drug (NSAID) may increase the risk of serious and potentially fatal gastrointestinal (GI) toxicity, including inflammation, bleeding, ulceration, and perforation of the esophagus, stomach, or intestines. These events can occur at any time during NSAID use, with or without warning symptoms, but the incidence may increase with dosage and duration of therapy. Administration of piroxicam at dosages greater than 20 mg per day carries an increased risk of GI side effects, and evidence from observational studies suggests that piroxicam may also be associated with a higher risk of serious GI toxicity relative to other NSAIDs. In clinical trials of several months to two years duration, NSAID-associated upper GI ulcers, gross bleeding, or perforation occurred in approximately 1% of patients treated for 3 to 6 months and in 2% to 4% of patients treated for one year. Patients with a prior history of peptic ulcer disease and/or GI bleeding have a greater than 10-fold increased risk of developing a GI bleed during NSAID use compared to patients without a history. Additional risk factors include advanced age (especially over 70 years), Helicobacter pylori infection, excessive alcohol use, smoking, a history of GI inflammatory conditions, advanced liver disease, coagulopathy, and poor general health status. GI toxicity aside, clinical studies have also failed to demonstrate greater therapeutic benefit from the coadministration of piroxicam with another NSAID than the use of piroxicam alone.

MANAGEMENT: Concomitant use of piroxicam with other NSAIDs, except for low-dose aspirin for cardiovascular prophylaxis, should generally be avoided. Patients treated with a NSAID should be advised to take it with food and to immediately report signs and symptoms of GI ulceration or bleeding such as severe abdominal pain, dizziness, lightheadedness, and the appearance of black, tarry stools. The lowest effective dosage should be used for the shortest possible duration. Selective use of prophylactic anti-ulcer therapy (e.g., misoprostol, proton pump inhibitors) may be considered in high-risk patients.

References (4)
  1. (2023) "Product Information. APO Piroxicam (piroxicam)." Apotex Incorporated
  2. (2024) "Product Information. Feldene (piroxicam)." Pfizer Ltd
  3. (2024) "Product Information. Feldene (piroxicam)." Pfizer U.S. Pharmaceuticals Group, SUPPL-53
  4. (2024) "Product Information. moBILis (piroxicam)." Alphapharm Pty Ltd

Drug and food interactions

Major

oxyCODONE food

Applies to: aspirin / oxycodone

GENERALLY AVOID: Alcohol may potentiate the central nervous system (CNS) depressant effects of opioid analgesics including oxycodone. Concomitant use may result in additive CNS depression and impairment of judgment, thinking, and psychomotor skills. In more severe cases, hypotension, respiratory depression, profound sedation, coma, or even death may occur.

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations of oxycodone. The proposed mechanism is inhibition of CYP450 3A4-mediated metabolism of oxycodone by certain compounds present in grapefruit, resulting in decreased formation of metabolites noroxycodone and noroxymorphone and increased formation of oxymorphone due to a presumed shifting of oxycodone metabolism towards the CYP450 2D6-mediated route. In 12 healthy, nonsmoking volunteers, administration of a single 10 mg oral dose of oxycodone hydrochloride on day 4 of a grapefruit juice treatment phase (200 mL three times a day for 5 days) increased mean oxycodone peak plasma concentration (Cmax), systemic exposure (AUC) and half-life by 48%, 67% and 17% (from 3.5 to 4.1 hours), respectively, compared to administration during an equivalent water treatment phase. Grapefruit juice also decreased the metabolite-to-parent AUC ratio of noroxycodone by 44% and that of noroxymorphone by 45%. In addition, oxymorphone Cmax and AUC increased by 32% and 56%, but the metabolite-to-parent AUC ratio remained unchanged. Pharmacodynamic changes were modest and only self-reported performance was significantly impaired after grapefruit juice. Analgesic effects were not affected.

MANAGEMENT: Patients should not consume alcoholic beverages or use drug products that contain alcohol during treatment with oxycodone. Any history of alcohol or illicit drug use should be considered when prescribing oxycodone, and therapy initiated at a lower dosage if necessary. Patients should be closely monitored for signs and symptoms of sedation, respiratory depression, and hypotension. Due to a high degree of interpatient variability with respect to grapefruit juice interactions, patients treated with oxycodone may also want to avoid or limit the consumption of grapefruit and grapefruit juice.

References (1)
  1. Nieminen TH, Hagelberg NM, Saari TI, et al. (2010) "Grapefruit juice enhances the exposure to oral oxycodone." Basic Clin Pharmacol Toxicol, 107, p. 782-8
Moderate

aspirin food

Applies to: aspirin / oxycodone

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
Moderate

piroxicam food

Applies to: piroxicam

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

aspirin food

Applies to: aspirin / oxycodone

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

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.

Duplication

Nonsteroidal anti-inflammatories

Therapeutic duplication

The recommended maximum number of medicines in the 'nonsteroidal anti-inflammatories' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'nonsteroidal anti-inflammatories' category:

  • aspirin/oxycodone
  • piroxicam

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.

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.

Medical Disclaimer