1-800-FDA-1088. Psychiatric side effects have included anxiety , catatonia , confusion , delirium , depersonalization , depression , hallucinations , manic reaction , nightmares , paranoia , phobia , and toxic psychosis in less than 1% of patients. Hypersensitivity reactions have included anaphylaxis (including life-threatening anaphylactic shock), bullous pemphigoid, erythema multiforme,