• Compounds containing a catechol moiety (benzene ring with 2 adjacent OH groups) and an amine side chain


  • An agent that increases the contractility of the heart
  • More specifically called a "positive inotrope"
  • Commonly misused term when actually referring to a vasopressor


  • An agent that increases the heart rate
  • More specifically called a "positive chronotrope"


  • An agent that increases systemic blood pressure by causing vasoconstriction

Structure-Activity Relationships

Comparison of Agents

  • Click here to download a Word doc with a table comparing sympathomimetic drugs
  • It includes a blank version
  • You should memorise the key points, then fill the details into the blank version once per day until you have it memorised
  • It's a grind, but it doesn't take that long to do