People who suffer from inflammation of the joints, such as that experienced with rheumatoid arthritis and another form of the disease called osteoarthritis, may get some relief from symptoms with the brand-name drug Feldene. Known by the generic medical term piroxicam, Feldene classifies as a type of medicine called a non-steroidal anti-inflammatory drug. It functions by decreasing inflammation, which helps reduce swelling, pain in the joints and stiffness, MayoClinic.com reports.
Urination Problems
Serious common side effects of Feldene 20Mg, which doctors prescribe as the most common dose of the medication, can include problems with urination. The person may notice clouding of the urine, or he may see a reduction in his output of urine. The urine stream concentration may diminish as well with Feldene 20Mg. MayoClinic.com recommends getting immediate medical aid for any changes in urination.
Problems With Stools
Taking Feldene 20Mg can cause serious side effects that commonly occur in the intestines. For example, the person using the medication may experience constipation. The medicine also may induce other problems with stools such as causing them to have a tar-like and black consistency. Stools also may contain blood because of Feldene 20Mg use, MayoClinic.com reports. These problems, too, require immediate medical aid.
Swelling and Pain
The National Institutes of Health state Feldene 20Mg can cause pain during urination as well as pain in the stomach, both of which classify as serious side effects of the drug. Swelling also may occur in the Feldene 20Mg user's legs and feet, arms and hands, and in the facial area, including the throat--which can make it difficult to swallow--the tongue, eye region, lips and the face itself. The organization recommends immediate consultation with a physician if any of these side effects occur. Severe stomach and abdominal pain that might include burning sensations and cramps also may occur as serious side effects of the medicine, MayoClinic.com notes.
Flu-Like Syndrome
Flu-like syndrome, just as the name implies, causes symptoms of the flu or a cold to appear because of side effects of Feldene 20Mg. These serious symptoms include a fever, bodily aches, a runny nose, chills, congestion of the sinuses and chest, hoarseness and a sore throat. Even though these problems do not appear serious, the National Institutes of Health categorizes them as such and recommends talking with a doctor immediately.
Tachycardia
Another serious potential side effect of Feldene 20Mg can send the person's heart rate higher than normal. This condition, called tachycardia, can raise the blood pressure and potentially cause cardiac arrest if left untreated. The National Institutes of Health recommend seeking immediate medical attention for tachycardia.
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