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Home / Drugs / Starting with B / Bezafibrate
 
Bezafibrate
 

Antilipemic agent that lowers cholesterol and triglycerides. It decreases low density lipoproteins and increases high density lipoproteins. [PubChem]
BrandsBefizal
Bezalip
Bezalip retard
Bezatol
Bezatol SR
Cedur
CategoriesAntilipemic Agents
SynonymsBezafibrat
Bezafibrato [inn-spanish]
Bezafibratum [inn-latin]

indication

For the treatment of primary hyperlipidaemia types IIa, IIb, III, IV and V (Fredrickson classification) corresponding to groups I, II and III of the European Atherosclerosis Society guidelines - when diet alone or improvements in lifestyle such as increased exercise or weight reduction do not lead to an adequate response. Also for the treatment of secondary hyperlipidaemias, e.g. severe hypertriglyceridemias, when sufficient improvement does not occur after correction of the underlying disorder (e.g. diabetes mellitus).

pharmacology

Bezafibrate is an antilipemic agent that lowers cholesterol and triglycerides. It decreases low density lipoproteins and increases high density lipoproteins. Bezafibrate lowers elevated blood lipids (triglycerides and cholesterol). Elevated VLDL and LDL are reduced by treatment with bezafibrate, whilst HDL-levels are increased. The activity of triglyceride lipases (lipoprotein lipase and hepatic lipoproteinlipase) involved in the catabolism of triglyceride-rich lipoproteins is increased by bezafibrate. In the course of the intensified degradation of triglyceride-rich lipoproteins (chylomicrons, VLDL) precursors for the formation of HDL are formed which explains an increase in HDL. Furthermore, cholesterol biosynthesis is reduced by bezafibrate, which is accompanied by a stimulation of the LDL-receptor-mediated lipoprotein catabolism. Elevated fibrinogen appears to be an important risk-factor, alongside the lipids, smoking and hypertension, in the development of atheroma. Fibrinogen plays an important role in viscosity, and therefore blood flow, and also appears to play an important role in thrombus development and lysability. Bezafibrate exerts an effect on thrombogenic factors. A significant decrease in elevated plasma fibrinogen levels can be achieved. This may lead, amongst other things, to a reduction in both blood and plasma viscosity. Inhibition of platelet aggregation has also been observed. A reduction in blood glucose concentration due to an increase in glucose tolerance has been reported in diabetic patients. In the same patients, the concentration of fasting and postprandial free fatty acids was reduced by bezafibrate.

mechanism of action

Like the other fibrates, bezafibrate is an agonist of PPARα; some studies suggest it may have some activity on PPARγ and PPARδ as well.

biotransformation

Hepatic.

absorption

Bezafibrate is almost completely absorbed after oral administration. The relative bioavailability of bezafibrate retard compared to the standard form is about 70%.

half life

1-2 hours

drug interactions

Atorvastatin: Increased risk of myopathy/rhabdomyolysis

Cerivastatin: Increased risk of myopathy/rhabdomyolysis

Cholestyramine: Bile acid sequestrants like cholestyramine may decrease the absorption of fibric acid derivatives like bezafibrate. Therapy modification should be considered. If concomitant therapy is used, separate doses by at least 2 hours to minimize this interaction. Fenofibric acid labeling recommends administration one hour prior to or 4-6 hours after a bile acid sequestrant.

Conivaptan: Conivaptan may increase the serum concentration of CYP3A4 substrates like bezafibrates. Consider therapy modification. Conivaptan may increase the serum concentration of CYP3A4 substrates.

Cyclosporine: Cyclosporine may enhance the nephrotoxic effect of fibric acid derivatives like bezafibrate. Fibric acid derivatives may decrease the serum concentration of cyclosporine. Extra monitoring of renal function and cyclosporine concentrations will likely be required. Adjustment of cyclosporine dose may be necessary.

Fluvastatin: Increased risk of myopathy/rhabdomyolysis

Isocarboxazid: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like isocarboxazid.

Linezolid: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like linezolid.

Lovastatin: Increased risk of myopathy/rhabdomyolysis

Moclobemide: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like moclobemide.

Phenelzine: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like phenelzine.

Pravastatin: Increased risk of myopathy/rhabdomyolysis

Procarbazine: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like procarbazine.

Rasagiline: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) rasagiline.

Selegiline: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like selegiline.

Tranylcypromine: MAO Inhibitors may enhance the adverse/toxic effect of Bezafibrate. Avoid concomitant use of bezafibrate with monoamine oxidase inhibitors (MAOIs) like tranylcypromine.

Warfarin: Bezafibrate may increase the anticoagulant effect of warfarin. Monitor prothrombin time and therapeutic and adverse effects of warfarin if bezafibrate is initiated, discontinued or dose changed.