What is the difference between Inspra and the generic version?

The difference between Inspra and a generic version lies in the manufacturer and potentially in some of the non-medicinal ingredients used. Both products are required to meet the same manufacturing standards set by Health Canada, so they should generally be of the same quality. As long as your pharmacy monitors any changes in the manufacturer and you do not notice any differences in the medication's effects, it should be like switching between other medications you take.