Friday, August 21, 2015

A potent b-blocker with prominent intrinsic sympathomimetic activity

INTRODUCTION
A potent b-blocker with prominent intrinsic sympathomimetic activity. It has been used primarily as hypertensive may be adv in patient who develop marked bradycardia with propranolol

PHARMACOKINETIC
         Moderate lipid solubility
         Halflife:3-4hrs
         Bioavailability:90%
          
MECHANISM OF ACTION
Pindolol non selectively blocks beta-1 adrenergic receptor mainly in the heart inhibiting the effect of epinephrine and norepinephrine resulting in a decrease in heart rate and blood pressure by binding beta-2 receptor.pindolol inhibit the production of renin thereby inhibiting angiotensin-II and aldosterone production and therefore inhibit the vasoconstriction and water retention due to angiotensin-II and aldosterone respectively

USES
         Hypertension
         Angina pectoris
         Cardiac arrhythmias
         MI
         Congestive heart failure
         Pheochromocytoma
         Migraine
         Anxiety
         Glaucoma

ADVERSE EFFECT
         Beta blocker can worsen asthma and heart failure
         Produce hypoglycemia
         CNS disturbance
         Lethargy and vivid nightmares
          
DOSE
         ORAL: (5-15)mg tab
     Some marketed brand
           INADOL 5mg   VIKEN 10,15mg