"i have been taking this generic for several years. it worked great. now my pharmacy uses a different manufacturer every time i refill. what a difference. with the watson brand i&#039;d rate this a 10. i&#039;m currently on the activis brand and i would rate this a 0. all symptoms back. i found a few of the other brand and took them and felt great but now i&#039;m back to this most recent refill and it&#039;s awful. all i can say is although there is supposedly the same ingredients not all generics are equal."