What Are Generic Drugs?

Generic drugs, often called “generics,” are medicines made after the patent of a brand-name drug has expired. They must contain the same active ingredients as the original drug and work in the same way.

Why Are Generic Drugs Cheaper Than Brand-Name Drugs?

There are a few main reasons why generics usually cost less:

  1. Research & Development Costs
    • Brand-name drugs require years of research, testing, and approval before they reach the market.
    • This process can cost hundreds of millions (sometimes billions) of dollars.
    • Generic companies don’t repeat this entire process, so their costs are lower.
  2. Marketing & Advertising
    • Brand-name drugs spend heavily on advertising and promotion to build awareness.
    • Generics don’t need to advertise as much, since the drug is already known.
  3. Cost Recovery
    • Brand-name companies price drugs higher to recover the money spent on research, development, and marketing.
    • Generics don’t have these costs to recover, so they can sell at a lower price.
  4. Competition
    • When a generic enters the market, it increases competition.
    • This often pushes down the price of both the brand-name and generic versions.

Timeline for Generic Drugs

  • In the U.S., drug patents generally last 20 years.
  • Because patents are usually filed early in the process, a company may have about 7–12 years of exclusive sales after the drug is finally approved.
  • Developing a brand-new drug can cost anywhere from $100 million to over $800 million.
  • Sometimes, companies use legal methods (like extending patents) to delay generic competition — a strategy known as “evergreening.”

Why Generic Drugs Save Money

  • No New Formula Needed: Generics are made using existing knowledge, so no costly new inventions are required.
  • Same Active Ingredients: Generics are bio-equivalent to brand-name drugs, meaning they work the same way in the body.
  • No Large Clinical Trials: Safety and effectiveness are already proven by the original drug’s trials, so generics don’t need to repeat them.