This is a protocol for a Cochrane Review (Intervention). The objectives are as follows:

Primary objectives

To determine the short‐term dose‐related effect of alcohol versus placebo on systolic blood pressure and diastolic blood pressure in healthy and hypertensive adults over 18 years of age.

Secondary objective

To determine the short‐term dose‐related effect of alcohol versus placebo on heart rate in healthy and hypertensive adults over 18 years of age.