لخّصلي

_ * Calcium channel blockers*

• • CCBs are a group of medications that limit how your body uses calcium.(decrease cardiac work) 2_ increase diastole time.(increase coronary filling) 3_ coronary vasodilation._ indication and contraindications:
• B.A with angina : the preferred medication for this condition is verapamil.Types of CCBs: 1_Cardiac selective: (non_dihydrophyridines).5 decrease platelets aggregation.(decrease thrombosis) .2_Vascular selective:(dihydrophyridines).1_ decrease myocardial O2 demand.4_ decrease call necrosis.( reflex tachycardia ) .*Verapamil.*Diltiazem.*Nifedipine.

_ * Calcium channel blockers*

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  • CCBs are a group of medications that limit how your body uses calcium.
    Types of CCBs:
    1_Cardiac selective: (non_dihydrophyridines).
    *Verapamil.
    *Diltiazem.
    2_Vascular selective:(dihydrophyridines).
    *Nifedipine. ( reflex tachycardia ) .
    *Amlodipine.
    _ mechanisms according to (I.H.D).
    1 decrease myocardial O2 demand. (decrease cardiac work)
    2_ increase diastole time.(increase coronary filling)
    3_ coronary vasodilation.
    4_ decrease call necrosis.
    5_ decrease platelets aggregation.(decrease thrombosis) .
    _ indication and contraindications:
  
  
  
  


• B.A with angina : the preferred medication for this condition is verapamil.


• CHF with angina: the preferred medication is Amlodipine and Verapamil is not preferred in this case.