diclofenac and misoprostol, Arthrotec (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

DRUG INTERACTIONS: (Please also see the drug information for diclofenac.) Diclofenac is generally used with caution in patients taking blood thinning medications (anticoagulants), such as warfarin (Coumadin), because of the increased risk of bleeding.

Patients taking lithium (Eskalith, Lithobid) can develop toxic blood levels of lithium because diclofenac may inhibit the elimination of lithium from the body by the kidney.

Side effects from methotrexate (Rheumatrex, Trexall) and cyclosporine also may be increased by diclofenac.

Diclofenac may reduce the effectiveness of blood pressure-lowering drugs. Since prostaglandins are important in the control of blood pressure.

Antacids reduce the absorption of misoprostol and may delay absorption of diclofenac. Magnesium-containing antacids worsen misoprostol-associated diarrhea. Therefore, Arthrotec should not be administered with magnesium-containing antacids.

Combining NSAIDs with angiotensin receptor blockers (for example, valsartan [Diovan], losartan [Cozaar], irbesartan [Avapro]) or angiotensin converting enzyme inhibitors (for example, enalapril [Vasotec], captopril [captopril]) in patients who are elderly, volume-depleted (including those on diuretic therapy), or with poor kidney function may result in reduced kidney function, including kidney failure. These effects usually are reversible.

Diclofenac may increase blood levels of digoxin (Lanoxin)and lead to digoxin toxicity. Digoxin levels should be monitored.

PREGNANCY: Since misoprostol can cause abortions, Arthrotec should not be used by women who are pregnant. Women also should avoid pregnancy for one month or one menstrual cycle after discontinuing Arthrotec.

Medically Reviewed by a Doctor on 1/27/2015


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