For our customers who are currently using Tylan Soluble Powder, please note that this product will become prescription soon. Our existing stock of Tylan powder can still be sold over-the-counter but the next shipment we receive will have a prescription label.In order to continue to order Tylan Soluble Powder from JRG Supply, you will need a prescription from your vet. Customers located in Minnesota, South Dakota, or Iowa can take advantage of our on-farm prescription services by calling a member of our sales team at 800-354-7433.