[Effects of rilmenidine (hyperium) on lipid balance in hyperlipidemic hypertensive patients. Randomized, controlled, double-blind 8-week study vs. captopril in parallel groups].

Rilmenidine (dose of 1 mg once or twice a day) is the first oxazoline compound with antihypertensive properties. Its effects on lipid parameters [total cholesterol, HDL and LDL fractions, triglycerides, apolipoprotein A1 and B, lipoprotein (a)] were compared under double-blind conditions and in parallel groups to those of captopril (50 to 100 mg per day, in 2 divided doses) over a period of 8 weeks, in 51 hyperlipidaemic hypertensive patients [age: 56.3 +/- 1.5 years, systolic and diastolic blood pressure (SBP/DBP): 165.1 +/- 2.0/99.1 +/- 0.6 mmHg, LDL cholesterol: 5.38 +/- 0.16 mmol/L]. No significant difference was demonstrated between the groups on inclusion for any of the clinical parameters (SBP, DBP, heart rate (HR)) and laboratory parameters, apart from apolipoprotein A1, for which the mean value was higher in the rilmenidine group than in the captopril group (p < 0.05). No difference between the groups was demonstrated during the 8 weeks of treatment for the course of blood pressure: SBP and DBP decreased by 20.5 and 13.9 mmHg, respectively, in the rilmenidine group and by 21.3 and 13.1 mmHg in the captopril group (no significant difference: NS). HR decreased by 0.3 beats per minute (bpm) in the rilmenidine group and by 4.1 bpm in the captopril group (NS). No statistically significant difference in lipid parameters was observed between the two groups. No clinically significant variation in any of the lipid parameters was observed after 8 weeks of treatment with rilmenidine or captopril. These results confirm the antihypertensive efficacy and neutrality of rilmenidine on lipid metabolism over a period of 8 weeks. Rilmenidine therefore represents a useful alternative in the first-line treatment of hypertension in hyperlipidaemic hypertensive patients.