What is Felvin? Felvin Tablet is known as a non-steroidal anti-inflammatory drug (NSAID) that is effective in the treatment of menstrual cramps. This Tablet contains Piroxicam as an active ingredient and works by decreasing the production of prostaglandins that cause pain. Felvin Dosage The recommended dose is 20 mg once daily or 10 mg twice daily. Some uses of Felvin include:...