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The following adverse reactions are discussed in greater detail in other sections of the labeling:
- Cardiovascular Thrombotic Events [see WARNINGS AND PRECAUTIONS]
- GI Bleeding, Ulceration and Perforation [see WARNINGS AND PRECAUTIONS]
- Hepatotoxicity [see WARNINGS AND PRECAUTIONS]
- Hypertension [see WARNINGS AND PRECAUTIONS]
- Heart Failure and Edema [see WARNINGS AND PRECAUTIONS]
- Renal Toxicity and Hyperkalemia [see WARNINGS AND PRECAUTIONS]
- Anaphylactic Reactions [see WARNINGS AND PRECAUTIONS]
- Serious Skin Reactions [see WARNINGS AND PRECAUTIONS]
- Hematologic Toxicity [see WARNINGS AND PRECAUTIONS]
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
Adverse reaction data were derived from patients who received DAYPRO in multidose, controlled, and open-label clinical trials. Rates for events from clinical trial experience are based on 2253 patients who took 1200 to 1800 mg DAYPRO per day in clinical trials. Of these, 1721 were treated for at least 1 month, 971 for at least 3 months, and 366 for more than 1 year.
Incidence Greater Than 1%
In clinical trials of DAYPRO or in patients taking other NSAIDs, the following adverse reactions occurred at an incidence greater than 1%.
Cardiovascular system: edema.
Digestive system: abdominal pain/distress, anorexia, constipation, diarrhea, dyspepsia, flatulence, gastrointestinal ulcers (gastric/duodenal), gross bleeding/perforation, heartburn, liver enzyme elevations, nausea, vomiting.
Hematologic system: anemia, increased bleeding time.
Nervous system: CNS inhibition (depression, sedation, somnolence, or confusion), disturbance of sleep, dizziness, headache.
Skin and appendages: pruritus, rash.
Special senses: tinnitus.
Urogenital system: abnormal renal function, dysuria or frequency.
Incidence Less Than 1%
The following adverse reactions were reported in clinical trialsor in patients taking other NSAIDs.
Digestive system: alteration in taste, dry mouth, eructation, esophagitis, gastritis, glossitis, hematemesis, jaundice, liver function abnormalities including liver failure, stomatitis, hemorrhoidal or rectal bleeding.
Metabolic system: hyperglycemia, weight changes.
Special senses: blurred vision, conjunctivitis, hearing decrease.
The following adverse reactions have been identified during post approval use of DAYPRO. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Body as a whole: serum sickness.
Read the Daypro (oxaprozin caplets) Side Effects Center for a complete guide to possible side effects
See Table 2 for clinically significant drug interactions with oxaprozin [see CLINICAL PHARMACOLOGY].
Table 2: Clinically Significant Drug Interactions with
|Drugs That Interfere with Hemostasis|
|Intervention:||Monitor patients with concomitant use of DAYPRO with anticoagulants (e.g., warfarin), antiplatelet agents (e.g., aspirin), selective serotonin reuptake inhibitors (SSRIs), and serotonin norepinephrine reuptake inhibitors (SNRIs) for signs of bleeding [see WARNINGS AND PRECAUTIONS].|
|Clinical Impact:||Controlled clinical studies showed that the concomitant use of NSAIDs and analgesic doses of aspirin does not produce any greater therapeutic effect than the use of NSAIDs alone. In a clinical study, the concomitant use of an NSAID and aspirin was associated with a significantly increased incidence of GI adverse reactions as compared to use of the NSAID alone [see WARNINGS AND PRECAUTIONS].|
|Intervention:||Concomitant use of DAYPRO and analgesic doses of aspirin is not generally recommended because of the increased risk of bleeding [see WARNINGS AND PRECAUTIONS]. DAYPRO is not a substitute for low dose aspirin for cardiovascular protection.|
|ACE Inhibitors, Angiotensin Receptor Blockers, and Beta-Blockers|
|Clinical Impact:||Clinical studies, as well as post-marketing observations, showed that NSAIDs reduced the natriuretic effect of loop diuretics (e.g., furosemide) and thiazide diuretics in some patients. This effect has been attributed to the NSAID inhibition of renal prostaglandin synthesis.|
|Intervention:||During concomitant use of DAYPRO with diuretics, observe patients for signs of worsening renal function, in addition to assuring diuretic efficacy including antihypertensive effects [see WARNINGS AND PRECAUTIONS].|
|Clinical Impact:||The concomitant use of oxaprozin with digoxin has been reported to increase the serum concentration and prolong the half-life of digoxin.|
|Intervention:||During concomitant use of DAYPRO and digoxin, monitor serum digoxin levels.|
|Clinical Impact:||NSAIDs have produced elevations in plasma lithium levels and reductions in renal lithium clearance. The mean minimum lithium concentration increased 15%, and the renal clearance decreased by approximately 20%. This effect has been attributed to NSAID inhibition of renal prostaglandin synthesis.|
|Intervention:||During concomitant use of DAYPRO and lithium, monitor patients for signs of lithium toxicity.|
|Clinical Impact:||Concomitant use of NSAIDs and methotrexate may increase the risk for methotrexate toxicity (e.g., neutropenia, thrombocytopenia, renal dysfunction) because NSAID administration may result in increased plasma levels of methotrexate, especially in patients receiving high doses of methotrexate.|
|Intervention:||During concomitant use of DAYPRO and methotrexate, monitor patients for methotrexate toxicity.|
|Clinical Impact:||Concomitant use of DAYPRO and cyclosporine may increase cyclosporine’s nephrotoxicity.|
|Intervention:||During concomitant use of DAYPRO and cyclosporine, monitor patients for signs of worsening renal function.|
|NSAIDs and Salicylates|
|Clinical Impact:||Concomitant use of oxaprozin with other NSAIDs or salicylates (e.g., diflunisal, salsalate) increases the risk of GI toxicity, with little or no increase in efficacy [see WARNINGS AND PRECAUTIONS)].|
|Intervention:||The concomitant use of oxaprozin with other NSAIDs or salicylates is not recommended.|
|Clinical Impact:||Concomitant use of DAYPRO and pemetrexed may increase the risk of pemetrexed-associated myelosuppression, renal, and GI toxicity (see the pemetrexed prescribing information).|
|Intervention:||During concomitant use of DAYPRO and pemetrexed, in patients with renal impairment whose creatinine clearance ranges from 45 to 79 mL/min, monitor for myelosuppression, renal and GI toxicity.
NSAIDs with short elimination half-lives (e.g., diclofenac, indomethacin) should be avoided for a period of two days before, the day of, and two days following administration of pemetrexed.
In the absence of data regarding potential interaction between pemetrexed and NSAIDs with longer half-lives (e.g., meloxicam, nabumetone), patients taking these NSAIDs should interrupt dosing for at least five days before, the day of, and two days following pemetrexed administration.
|Clinical Impact:||Concomitant use of corticosteroids with DAYPRO may increase the risk of GI ulceration or bleeding.|
|Intervention:||Monitor patients with concomitant use of DAYPRO with corticosteroids for signs of bleeding [see WARNINGS AND PRECAUTIONS].|
|Clinical Impact:||While oxaprozin does alter the pharmacokinetics of glyburide, coadministration of oxaprozin to type II non-insulin dependent diabetic patients did not affect the area under the glucose concentration curve nor the magnitude or duration of control.|
|Intervention:||During concomitant use of DAYPRO and glyburide, monitor patient’s blood glucose in the beginning phase of cotherapy.|
Laboratory Test Interactions
False-positive urine immunoassay screening tests for benzodiazepines have been reported in patients taking DAYPRO. This is due to lack of specificity of the screening tests. False-positive test results may be expected for several days following discontinuation of DAYPRO therapy. Confirmatory tests, such as gas chromatography/mass spectrometry, will distinguish DAYPRO from benzodiazepines.
Read the Daypro Drug Interactions Center for a complete guide to possible interactions
Last reviewed on RxList: 6/7/2016
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