Bests & Worsts Reviews from Amazon

I have had my dog on this medication for about 6 months and thought I would save some money and buy from Amazon. I bought the 80 Capsule pack so that it would last us longer. Tonight, I went to put it into my dogs food and noticed it looked weird. The normal powder is white and fine, this had a funny color to it. I did not feed the food to my dog and opened a new capsule onto a plate and was shocked to see that the powder was actually a weird tan/orange color with larger flecks of substance in it. I have read the reviews on Amazon warning about counter-fit products and I am convinced this is a counter-fit package. I WILL NEVER BUY THIS PRODUCT FROM ANYONE OTHER THAN MY VET!!! My dogs life is more important to me than saving a few dollars. It's a shame that Amazon has so many counter-fit products, esp ones that can harm.