Tazolol

Chemical structure of Tazolol

Tazolol is a beta-adrenergic antagonist used in the treatment of various cardiovascular conditions. It is a non-selective beta-blocker, meaning it inhibits both beta-1 and beta-2 adrenergic receptors. This class of drugs is commonly used to manage hypertension, angina pectoris, and certain types of arrhythmia.

Mechanism of Action

Tazolol works by blocking the effects of epinephrine (adrenaline) and norepinephrine on beta-adrenergic receptors. By inhibiting these receptors, Tazolol reduces the heart rate, decreases cardiac output, and lowers blood pressure. This action helps to alleviate the symptoms of angina and reduces the risk of myocardial infarction.

Pharmacokinetics

Tazolol is administered orally and is well absorbed from the gastrointestinal tract. It undergoes hepatic metabolism and is excreted primarily in the urine. The half-life of Tazolol allows for once or twice daily dosing, depending on the clinical scenario.

Clinical Uses

Tazolol is indicated for the management of:

• Hypertension
• Angina pectoris
• Cardiac arrhythmias
• Heart failure (in certain cases)

Side Effects

Common side effects of Tazolol include:

• Bradycardia
• Hypotension
• Fatigue
• Dizziness
• Bronchospasm (due to beta-2 receptor blockade)

Contraindications

Tazolol should not be used in patients with:

• Asthma or chronic obstructive pulmonary disease (COPD)
• Severe bradycardia
• Heart block
• Cardiogenic shock

Related Pages

• Beta blocker
• Adrenergic receptor
• Hypertension
• Angina pectoris