Other side effects of heart failure medication

In addition to common side effects (see ‘Common side effects of heart failure medication) the people we spoke to attributed several other problems to their heart failure medicines. These included erectile dysfunction (impotence), breast enlargement in men, damage to the liver and thyroid gland and sensitivity to the sun.

Some men noticed they had lost interest in sex (loss of libido) since having heart failure and several could not maintain an erection ; most did not know whether to blame heart failure or medication, though one man was convinced that atenolol had affected his sexual ability. Reduced libido and impotence are known side effects of several types of medicine (beta blockers in particular are well known for causing problems with erections) although they can also be caused by cardiovascular disease and other medical conditions. Older men had accepted their impotence and ceased sexual activity. A 74-year-old man said he was aware that impotence was a potential side effect of his medicines but he hadn’t put it to the test. Although the drug Viagra (sildenafil) is widely prescribed to help with erectile dysfunction, it is not recommended for people with heart conditions because it raises blood pressure.

He chose not to take an alternative medicine that would preserve his libido but be less effective for his heart condition.

Age at interview 65

Gender Male

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Brian feels that age and beta blockers caused his impotence. His GP prescribed Viagra but didn’t help.

Age at interview 76

Gender Male

Age at diagnosis 70

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Impotence was more of an issue for the younger men we spoke to, who were more likely to want to try to find ways to overcome it.

Atenolol seemed to affect his sexual ability but his libido returned to normal after stopping the drug.

Age at interview 35

Gender Male

Age at diagnosis 35

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Philip described all the possible methods he had tried of overcoming erectile dysfunction but nothing proved satisfactory.

Age at interview 52

Gender Male

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Despite being told the risks of Viagra, Tim had obtained some and used it successfully for a while but then his erections returned naturally.

Age at interview 53

Gender Male

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Two men had experienced breast enlargement and soreness which had shocked them; one didn’t know what the cause was, and the other said the condition improved when he stopped taking spironolactone (a type of diuretic).

He has experienced breast enlargement as a side-effect of his drugs.

Age at interview 56

Gender Male

Age at diagnosis 53

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He developed a swollen and sore right breast from spironolactone.

Age at interview 49

Gender Male

Age at diagnosis 46

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Several people experienced extreme reactions to particular drugs, for example one man found he couldn’t tolerate simvastatin (Zocor) which gave him hepatitis (an inflamed liver) and made him ill for 2 years.

He was unable to tolerate simvastatin (Zocor).

Age at interview 35

Gender Male

Age at diagnosis 35

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Others had adverse reactions to amiodarone, a medicine for heart rhythm problems, including sensitivity to the sun, and though one person had been warned to avoid the sun by his doctor he had taken no notice and got burned. Since then he had taken to wearing gloves and a straw hat whenever he goes outside. Some men developed a thyroid condition as a result of taking amiodarone, so now took thyroxine in addition to their other medicines.

He experienced bad sunburn because of one of his drugs.

Age at interview 81

Gender Male

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He was unable to tolerate simvastatin (Zocor).

Age at interview 35

Gender Male

Age at diagnosis 35

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Other bodily changes blamed on medicine side effects included aching legs, skin conditions, sleeping difficulties, fatigue, glaucoma and cataracts, memory loss and poor concentration. Norman had a psychotic experience when taking an experimental drug as part of a clinical trial, so had to stop it.

Since taking medicines for his heart condition Roger has experienced pains in his legs in bed at night.

Age at interview 68

Gender Male

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Norman talks about a bad experience he had when taking an experimental medicine.

Age at interview 73

Gender Male

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Occasionally people became aware of interactions between two or more medicines. For instance one woman said that the action of her warfarin had been blocked by a herbal sleeping pill and by antibiotics. She says she always consults a pharmacist when starting new medicines. Richard found that the medicines he was taking for a prostate problem were interfering with his heart medicines, so he stopped it. Ted believed that drinking alcohol had interacted with one of his heart medicines, so he gave up alcohol. A man said that he was starting on a beta blocker very slowly as it was recognised that it could affect his asthma.

Several people saw no point in worrying about possible side effects because the drugs were necessary to counteract their heart failure, Not everyone said they had experienced side effects from their heart failure medicines. Some people said they found reading the list of side effects in the leaflet accompanying each medicine scary or off-putting. Others said they don’t read this information for precisely this reason or because it might make them imagine they were having all the side effects listed. One woman said she re-read her medicine leaflets repeatedly as a reminder of the side effects so that she would recognise them as such if they occurred.

She doesn’t want to know anymore about side effects in case she imagines having them.

Age at interview 53

Gender Female

Age at diagnosis 49

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Because drugs affect people differently it is important to talk to a doctor about any side effects as it is often possible to change medication.

See our resources for publications which explain heart failure medications in more detail.

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