Is generic medication as good as name brand?

Brand name drugs are registered under patents, but those patents are limited. When they expire, the drugs and their manufacturing process become “public property”, in a manner of peaking. Other licensed pharmacological companies can then duplicate these drugs under different names. The duplicated copies of these drugs are called generic drugs. They are created to be exactly the same as the name brand originals.

The brand name original of the drug does not just stop being made either; it remains in circulation alongside the generic versions of it.

http://www.imfaceplate.com/Mark1950/is-generic-medication-as-good-as-name-brand

When getting a prescription filled, you might have been asked whether you would prefer the generic alternative. Understanding the differences between generic and brand name medicines can help you make an informed choice.

Are generic medicines the same as brand-name medicines?

In the way they work, yes. In other ways, maybe not.
Every medicine has a brand name, which is given by the pharmaceutical company that markets the drug, and a generic name, the drug’s ‘active ingredient’ that makes it work.
When a medicine with a new active ingredient first appears, it is protected by a patent for several years. The patent is designed to allow the company to make enough profits to recover the money it spent developing the medicine, or on buying the rights to market it.

https://www.healthdirect.gov.au/generic-medicines-vs-brand-name-medicines