^ "A drug interaction is a situation in which a substance (usually another drug) affects the activity of a drug when both are administered together. This action can be sinergistic (when the drug’s effect is increased) or antagonistic (when the drug’s effect is decreased) or a new effect can be produced that neither produces on its own. Typically, interactions between drugs come to mind (drug-drug interaction)."
How is increased tachycardia, paranoia and other mentioned effects not an interaction in medical sense?
How is increased tachycardia, paranoia and other mentioned effects not an interaction in medical sense?