A question on Psychiatric drugs?

Are there any interactions bewteen Haloperidol (Haldol) and Quetiapine (Seroquel)? Can too much Quetiapine make you agitated? Can Clonazepam (Klonopin) or Valium (Diazepam) treat Restless legs Syndrome? What drug could treat anti-psychotic induced restless legs? Can Haldol and Seroquel ist with alcohol and Opioid withdrawal? What drugs, apart from Benzatropine, can stop dystonic reactions?