Hos patienter, der allerede er i diuretika behandling, og især hos dem, der for nyligt er sat i diuretika behandling, kan der ses et lejlighedsvist svært blodtryksfald, når Zestril adderes.
Patients already on diuretics and especially those in whom diuretic therapy was recently instituted, may occasionally experience an excessive reduction of blood pressure when Zestril is added.