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Dynacin is a prescription drug approved by the U.S. Food and Drug Administration (FDA) to treat infections. Dynacin is sometimes prescribed off-label to treat rheumatoid arthritis. Dynacin is also referred to by its drug name, minocycline. Minocycline is also sold under the brand name Minocin.

Dynacin is an antibiotic of the tetracycline class. Dynacin is also considered a disease-modifying anti-rheumatic drug (DMARD). The exact mechanism of Dynacin in treating rheumatoid arthritis is unknown. It is believed to work by lowering levels of certain proteins that promote inflammation that causes tissue damage.

How do I take it?
Prescribing information states that Dynacin is taken orally as a tablet. It should be taken exactly as prescribed by a physician.

Side effects
The FDA-approved label for Dynacin lists common side effects including fever, nausea, vomiting, diarrhea, mouth sores, hair loss, itchiness, cough, rash, joint pain, allergic reactions, and dizziness.

Rare but serious side effects listed for Dynacin include drug rash with eosinophilia and systemic symptoms (DRESS), serious infections of the colon, and liver damage.

If you experience chest pain, confusion, yellowing of the skin or eyes, muscle weakness, watery or bloody diarrhea, or joint pain with fever and swelling, stop using Dynacin and tell your doctor immediately.

For more details about this treatment, visit:

Dynacin — RxList

Minocycline —

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