Here the context is prozac FOR CHILDREN, not in general. Yet some people make a point in commenting that SSRIs are ineffective in general because they believe in some big pharma conspiracy. This is spreading misinformation. The truth is that SSRIs are modestly more effective than a placebo for approximately >> one third of the individuals << who try them. In other words, SSRIs are effective for more than 60-66% of adults. Moreover, there are a few different types of SSRIs. It takes time to find the one that fits you.

> they believe in some big pharma conspiracy

See: the Sackler family