Kan naproxen de menstruatie verstoren?

– Two patients are described experiencing interruption of menstrual blood flow soon after taking a tablet of naproxen (250 or 275 mg). The patients were young women (19 and 34 years) with a diagnosis of primary dysmenorrhoea: menstruation had otherwise been regular and of normal duration. Normal menstruation is influenced by prostaglandins in a complex way. Non-steroidal anti-inflammatory drugs are known to reduce the amount of blood loss in menorrhagia. It is suggested that the effects of cyclo-oxygenase inhibitors on the metabolism of prostaglandins may occasionally interfere with the normal course of menstruation.