I kliniske undersøgelser, hvor valsartan blev sammenlignet med en ACE- hæmmer, var incidensen af tør hoste signifikant (P < 0, 05) mindre hos patienter i valsartanbehandling end hos patienter i behandling med en ACE- hæmmer (henholdsvis 2, 6% versus 7, 9%).
In clinical trials where valsartan was compared with an ACE inhibitor, the incidence of dry cough was significantly (P < 0.05) less in patients treated with valsartan than in those treated with an ACE inhibitor (2.6% versus 7.9% respectively).