Cvs Pharmacy I was charged $95.99 for a prescription that Costco sells for $26 Woodland Hills, California

"Is there a law against price gauging?  "

    It's called price gouging and there is no law against what you describe.    Here in America we operate under what is called a Free Market system.     You, the consumer, ultimately decide what is a fair price.    For example, Nieman Marcus sells a shirt for $200 that I can buy at a discount department store for $50.   Should that be illegal?   If Nieman Marcus can convince their customers that the shirt is worth $200 shouldn't their customers be able to buy it from them?

  Here's the bottom line, if you don't like the price at CVS, you are free to go to Costco and pay less.  No one is stopping you.    If your true complaint is that you bought something without shopping around and later found you paid more than you had to, that's on you.   Now that you know the price is substantially less at Costco, it's unlikely that you'll buy it at CVS again.   If everyone does that, then CVS will either have to lower its price, or watch its sales for that item dry up.   It's a self adjusting system and it works pretty well.

    If you want to see a real consumer disaster, study any economy that has implemented widespread price controls. 

businesses are free to charge what they want and YOU are free to take your business elsewhere.

They haven't violated any laws unless they quoted you one price and charged you another.

Did you check the price before filling the prescription?

Gauging is measuring. No, there's no law against that.

There are no price controls in a free market economy.