Table 3 Adverse effects reported in the studies.

From: Efficacy and safety of mineralocorticoid receptor antagonists for the treatment of low-renin hypertension: a systematic review and meta-analysis

Drug class

Study

Intervention

Adverse effects (MRA)

Adverse effects (comparator)

MRA versus diuretics

Douglas 1974

Sp 400 mg compared to Hct 100+Tr 200 mg

Breast tenderness 11.7%

Amenorrhoea 5.9%

Impotence 11.7%

Muscle cramps 17.6%

Lassitude 23.5%

Hypokalaemia 0%

Angina and hypotension 0%

Breast tenderness 0%

Amenorrhoea 0%

Impotence 0%

Muscle cramps 23.5%

Lassitude 23.5%

Hypokalaemia 5.9%

Angina and hypotension 5.9%

Spark 1974

Sp 400 mg compared to Hct 200 mg

None

Hypokalaemia and muscle cramps (% NR)

Kreeft 1983

Sp 400 mg compared to Ch 100 mg

Orthostatic dizziness 16%

Orthostatic dizziness 0%

MRA versus ACEi/ARB

Weinberger 2005

E100–200mg compared to Lo 50–100 mg

Gynaecomastia 2.3%

Irregular menses 0%

Impotence 1.2%

Hyperkalaemia: 1.2%

Gynaecomastia 0%

Irregular menses 2.4%

Impotence 1.2%

Hyperkalaemia: 0%

MRA versus ENaCi

DeCarvalho 1980

Sp 100-mg compared to Tr 100-mg

Orthostatic dizziness and hypotension 8%

Orthostatic dizziness and hypotension 0%

MRA versus placebo

Carey 1972

Sp 400 mg compared to placebo

Breast tenderness 0%

Impotence 12.5%

Muscle cramps 8.3%

General weakness 4.2%

Breast tenderness 0%

Impotence 0%

Muscle cramps 0%

General weakness 0%

Saruta 2004

Ep 50,100,200 mg compared to placebo

Breakdown NR. No difference between groups.

  1. ACEi/ARB angiotensin-converting enzyme inhibitors/angiotensin receptor blockers; Ch chlorthalidone, ENaCi epithelial sodium channel inhibitors, Ep eplerenone, Hct hydrochlorothiazide, Lo losartan, MRA mineralocorticoid receptor antagonist, NR not reported, Sp spironolactone; Tr triamterene.