My daughter (7) developed tics from ritalin.She has ADHD.The tics went away after the ritalin was stopped.She's not had any tics in over a year since she stopped ritalin.I decided to try Natrol Omega-3 Fish oil and now she has a vocal tic.I'm sure it was the fish oil that caused it.I stopped the fish oil over a week ago but the tic is still there but getting better.Anyone know how long will it take for the fish oil to leave her system and the tic to stop completely?Thanks,Brenda