Vit: High dose of Ca & P containing compds; drugs w/ same content to avoid overdose, antibiotics, isotretinoin, NSAIDs, anticoagulants, insulin, HMG-CoA reductase inhibitors, milk & levodopa. Fe sulfate: Antacids, chloramphenicol, levodopa, penicillamine, quinolones, & dairy products. Buclizine: CNS depressants, alcohol, antihistamines, anticholinergics & apomorphine.