I recently re-filled my prescription and noticed the markings had changed. There was always an SLV stamped on the drug, it is now blank. It still says ACN 8 on the front. Has anyone else noticed this? ## Yes, the Aceon tablet listed in the U.S. prescription drug databases has the SLV markings on it, but it always possible for the company to change it, for some reason and then it can take awhile for the details to populate through to our databases. Have you tried double checking with your pharmacy?