The pressor effects of 
inotropes and 
vasopressors with indirect sympathomimetic actions, such as adrenaline (
epinephrine), isoprenaline (isoproterenol), noradrenaline (norepinephrine) and methoxamine may be unchanged or only moderately increased in patients taking 
MAOIs. The increase may be somewhat greater in those who show a significant hypotensive response to the MAOI. 
 No immediate action needed, but bear these potential moderate reactions in mind if using the combination.