Not that i am advocating using albendazole for parasites but if i wanted to go down the pharma route for worming products i would buy horse wormers.
All types of popular worming chemicals which we pay stupid money for are available very cheaply in horse worming products as a paste.
You need to know how many mg per kg you should safely take as a human. It's different for a horse so don't follow the instructions on the packet!
You would get several doses from just one tube of horse wormer that costs around 15 euro.
I assume they are available in every country easily.
Do research on this - other posters on CZ have posted about this method - worth doing a search.