As time passed and more and more anticonvulsants came on the market, primidone was pushed further and further away from its former place of prominence, and major Western pharmaceutical corporations became less and less interested in manufacturing and selling it.
مع مرور الوقت و ظهور المزيد من مضادات الاختلاج في السوق ، تم دفع بريديمون أبعد وأبعد عن مكان الصدارة السابق ، وأصبحت شركات الأدوية الغربية الكبرى أقل اهتماما بصناعته وبيعه.