Keppra Prices. This Keppra price guide is based on using the Drugs.com discount card which is accepted at most U.S. pharmacies. The cost for Keppra intravenous solution (100 mg/mL) is around $562 for a supply of 50 milliliters, depending on the pharmacy you visit. Prices are for cash paying customers only and are not valid with insurance plans. A generic version of Keppra is available, see levetiracetam prices.