Does naproxen cause arrhythmias?

Yes, the use of non-steroidal anti-inflammatory medicines, such as ibuprofen or naproxen contained in Anapran EC 500, may increase the risk of heart rhythm disturbances. Of course, this side effect may or may not occur. Anaprac EC 500 is a prescription medicine and should be used by a doctor who knows your state of health. However, discontinuation of the drug in this case is not associated with a threat to life and health, so you can use a drug containing naproxen or diclofenac in the form of a gel to see whether local treatment will be sufficient or not. If the use of the gel turns out to be insufficient, it will be necessary to visit a doctor and consider modifying the therapy.