What is the difference between calcium channel blockers and beta blockers?

I've heard on the news that they have been testing and found that calcium channel blockers and Ace inhibitors are best used to fight high blood pressure. I take a beta blocker Atenolol and HZT (Hydrchlorothiazide) for hypertension. Is this the same thing? Of course I will follow this up with my doctor next... show more I've heard on the news that they have been testing and found that calcium channel blockers and Ace inhibitors are best used to fight high blood pressure.

I take a beta blocker Atenolol and HZT (Hydrchlorothiazide) for hypertension. Is this the same thing? Of course I will follow this up with my doctor next week but would like some laymen input.
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