Niguldipine
Niguldipine[edit]
Niguldipine is a calcium channel blocker that belongs to the dihydropyridine class of medications. It is primarily used in the management of hypertension and angina pectoris. As a calcium channel blocker, niguldipine works by inhibiting the influx of calcium ions through L-type calcium channels, which are found in the smooth muscle cells of the vascular system and the myocardium.
Mechanism of Action[edit]
Niguldipine exerts its effects by selectively blocking L-type calcium channels. These channels are responsible for the influx of calcium ions into cells, which is a critical step in the contraction of smooth muscle and cardiac muscle. By inhibiting these channels, niguldipine causes relaxation of vascular smooth muscle, leading to vasodilation and a subsequent decrease in blood pressure. This action also reduces the workload on the heart, making it effective in treating angina.
Pharmacokinetics[edit]
Niguldipine is administered orally and is well absorbed from the gastrointestinal tract. It undergoes extensive first-pass metabolism in the liver, which affects its bioavailability. The drug is highly protein-bound in the bloodstream and is metabolized primarily by the cytochrome P450 enzyme system. The metabolites are excreted in the urine and feces.
Clinical Uses[edit]
Niguldipine is used in the treatment of:
- Hypertension: By lowering blood pressure, niguldipine helps prevent complications such as stroke, myocardial infarction, and heart failure.
- Angina pectoris: It alleviates chest pain by reducing the oxygen demand of the heart and improving blood flow to the myocardium.
Side Effects[edit]
Common side effects of niguldipine include:
Less common but serious side effects may include:
