DrsFosterSmith.com has Tradewinds Wormer with praziquantel for tapeworms. A bottle of 3 tablets costs $11.99. Use 1 tablet for each 7 lbs of cat. 2 bottles and shipping is $31.97. One more bottle will bring the total to $44.88. Then all you have to do is get the pills in the cats

I gave them to my cat and never had to repeat it. Now he gets Revolution every month.