A series of visual analogue scales (VAS) was used to examine the prevalence of side‐effects among hypertensive patients taking beta‐ adrenoceptor blocking drugs. When compared to untreated non‐ hypertensive control subjects, patients taking beta‐adrenoceptor blockers had a greater prevalence of tired legs (P less than 0.001), cold digits (P less than 0.01), insomnia (P less than 0.01) and loss of overall wellbeing (P less than 0.01). Side‐effects did not differ significantly between patients taking atenolol (n = 30), oxprenolol (n = 16), propranolol (n = 15) or metoprolol (n = 10). If there is an important difference in the prevalence of side‐effects between different beta‐adrenoceptor blockers, a much larger study will be needed to demonstrate it.