A brand name for various pharmaceuticals sold by Wal-Mart and Sam's Club. Of primary interest to caregivers of pets with diabetes are their insulins--R, NPH and 70/30 mix--all made by Novo Nordisk, syringes and insulin pen needles.
ReliOn/Novolin Insulins:
This link[1] confirms that Novo Nordisk is the manufacturer of ReliOn insulins.