GUANETHIDINE AND INOTROPES AND VASOPRESSORS

The pressor effects of noradrenaline (norepinephrine), metaraminol and other related drugs can be increased in the presence of guanethidine.
The pressor effects of drugs such as noradrenaline (norepinephrine) can be grossly exaggerated and so caution is warranted if concurrent use is considered essential. It would seem prudent to stop the guanethidine.