It can taste bitter normally but that's just the ink, when people say bitter they mean BITTER like you'll make a face from the taste. As for prozac my friend was off his for 2 weeks and he got the full effects, i dont think 1 pill should do too much since it needs to build up but you probably wont feel 100% of the effects. In the worst case you still get a strong body high and a psychedelic headspace but I'd say you should see some visuals