Diclofenac, sold under brand names such as Cataflam and Voltaren-XR, is a commonly prescribed nonsteroidal anti-inflammatory drug (NSAID) used in the treatment of mild pain from inflammation and arthritis. While many of the side effects of diclofenac are mild, a number of more severe side effects may occur. If you experience any side effects in response to a diclofenac prescription, talk to your health care professional.
Mild Side Effects
According to the Mayo Clinic, the most common side effects of diclofenac include hearing loss, buzzing in the ears, weakness, bloating and passing excess gas. These side effects are mild and occur during the initial use of diclofenac. If you experience these side effects and they persist or become irritating, seek advice from your doctor.
Cardiac Side Effects
Rare, but dangerous cardiac side effects can occur while using diclofenac. These include rapid heart beat, arrhythmias, chest pain, shortness of breath and a flushing of the skin. Contact your doctor immediately if you experience such symptoms as they may be signs of potentially dangerous side effects.
Skin-Related Side Effects
According to the National Institutes of Health and the Mayo Clinic, diclofenac can also lead to adverse reactions of the skin, including paleness, itching, rash, swelling, increased bleeding and loosening of the skin. These are also signs of potentially dangerous side effects and should be examined by a health care professional.
Gastrointestinal Side Effects
A number of gastrointestinal side effects have been reported with diclofenac use. According to the Mayo Clinic and the National Institutes of Health, serious side effects of diclofenac are nausea, stomach pain, stomach bleeding, intestinal bleeding, bloody or tar-like stool and problems passing urine. Contact your doctor if you experience these potentially dangerous symptoms.
Severe Allergic Reactions: Anaphylaxis
Diclofenac can lead to severe allergic reactions in rare cases. These are most likely to occur in individuals with a history of allergies to aspirin and other NSAID class drugs. Symptoms of anaphylaxis include fast, irregular breathing, gasping, fainting, swelling of the skin and eyelids, and racing heart beat. Seek emergency attention if an allergic reaction occurs in response to diclofenac.
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