Treatments
Additional medical treatments
Fibrates:
Fibrates are a group of medicines which include bezafibrate, fenofibrate and gemfibrozil. They inhibit the synthesis of cholesterol and bile acids, and enhance the secretion of cholesterol in bile.1
- Their main effect is to reduce triglycerides by reducing the concentration of very-low-density lipoproteins (VLDL): they also increase HDL-C and have variable effects on LDL-C. They are used mainly in patients with hypertriglyceridaemia
- Fibrates have been shown to reduce the risk of coronary heart disease events in people with low HDL-C or with raised triglycerides
Side effects common with fibrates include gastrointestinal complaints, and fibrates appear to increase the likelihood of developing cholesterol gallstones.1
Bile Acid Sequestrants (synthetic resins):
Bile acid sequestrants, also known as resins, are a group of medicines which include colestipol and colestyramine (also known as cholestyramine).1
- They act by binding bile, which is released from the gall bladder into the intestine to help digest foods. They prevent the re-absorption of bile acids back into the body, causing the body’s bile acid level to drop. The liver converts cholesterol to more bile acid to compensate, hence reducing LDL-C levels
- Because bile acid sequestrants can also bind fat soluble vitamins and prevent their uptake by the body, it may be necessary to take a supplement of vitamin A, D and K whilst taking bile acid sequestrants
- It is also recommended that any other medication is taken at least one hour before or 4–6 hours after taking bile acid sequestrants
These are sometimes prescribed in combination with a statin to increase cholesterol reduction. Sequestrant therapy may produce a variety of symptoms, including constipation, bloating, nausea, and gas.1
Nicotinic Acid (Niacin):
Nicotinic acids, or niacin (the water-soluble B vitamin), are a group of medicines which include acipimox and nicotinic acid.1
Nicotinic acid reduces triglycerides and increases HDL-C, and may also modestly reduce LDL-C. Nicotinates are mainly used in hypertriglyceridaemia.1
Reference:
1. In: Fast Facts - Hyperlipidaemia. Eds Durrington P, Sniderman A. Health Press Ltd, Oxford, 2000. 81-94.