Hello,
I have been using Miralax for constipation issues and my last shipment was substituted with Polyethylene Glycol 3350NF. I have experienced swollen feet using this and have quit taking it, This type of product is to retain water for the colon but in my case there is issue with the feet. Will notify the doctor at my monthly visit to the VA clinic which is required for my Methadone prescription. I know some folks experienced this reaction taking Lyrica. Thought it best to pass this info to my fellow PN suffers. Enjoy the day.

Lanny