I have tried the generic, and the particulates seem far larger.. was unable to draw it up in the 30G insulin needles, much less the 31 G I prefer to use. I went back to the 'you get what you pay for attitude' especially after basically wasting 2 different batches of the generic of the 7.5mg depot! I had my Vet specify right on the script do NOT substitute. I'm ordering from Canada think vis a vis India, but the non-generic is great re mixing ,titrating, and drawing up into syringes, can have it all drawn up and in freezer within 20 minutes . the generic... never again. Michelle [Posted in FML 6519]