Limited evidence suggests that blood pressure elevations may occur when patients taking 
moclobemide are given 
nasal decongestants with indirect sympathomimetic actions, such as ephedrine. However, these rises in blood pressure do not seem to be as large as those seen with the non-selective 
MAOIs. Ephedrine has been successfully and uneventfully used in the presence of 
moclobemide (omitted on the day of surgery) during anaesthesia to 
control hypotension. 
 The manufacturers of 
moclobemide advise avoiding drugs such as ephedrine, pseudoephedrine and phenylpropanolamine.