Absolutely! And thanks. I have been checking out ordering 1000 tabs of 4 mg Chlorpheniramine maleate. This is my preferred drug for prophylactic seasonal allergic reaction. It appears to be unavailable on line. However, I see that some vet/ pet med companies have 4 mg tabs of the Chlorpheniramine Maleate. My question, according to the USP, generic medications must be exact same drug wise, the inert ingredients are not specific. How would a Pet Med company s product differ from the standard brand name Chlortrimeton? If the mg dose is the same... Is there a big difference? And, how? And how would it effect human use?