I've been on 4 different brands of generic Ritalin. I'm sure I can tell them apart by taking one. 1. Normal (the first one - don't remember the manufacturer -

I've been on 4 different brands of generic Ritalin. I'm sure I can tell them apart by taking one. 1. Normal (the first one - don't remember the manufacturer - was extremely hard to break in half) 2. Actavis - strong, but slow to hit 3. KVK - strong and hits fast 4. Mallinkrodt - weak For years Mallinkrodt was the only brand my drug store would get. Now they switched back to KVK and it's like night and day. I only have to do half as much.