Generic vs. Brand-Name Drugs: What’s the Difference?

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Generic vs. Name-Brand Drugs

There’s a lot of debate and head-scratching about generic vs. brand-name medication.

Are generics really as effective?

What’s the difference between the two?

When one is preferable over the other?

Generic drugs can look quite different than their brand-name counterparts, despite having the same active ingredient, strength, uses, form, route of administration, and labeling.

We asked pharmacist Tattika Soreta, pharmacy program coordinator, to share answers to these and other common questions about generic vs. name-brand drugs.

Do all brand-name drugs have a generic equivalent?

NO. Generic drugs usually become available after patents protecting a brand-name medicine expire. “Not all patents are on the same timetable,” Tattika says, “so it can take longer for some drugs to have a generic equivalent.”

Are generic drugs as safe and effective as their brand-name counterparts?

YES. Generic products go through an approval process and the FDA ensures they are continually monitored for safety, efficacy, and quality. It also investigates any problems or complaints, and when needed, will issue recalls both for brand-name and generic drugs.


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Can a doctor require that the patient get a brand-name drug even when a generic exists?

YES. By law, the pharmacist has to fill the prescription the way it’s written, so if the doctor writes “Do not substitute,” that will be honored. But keep in mind that generic drugs go through rigorous testing and are as effective and safe as the brand-name original.

Can patients save money by asking their doctor for a generic alternative?

YES. Because studies and trials don’t have to be repeated to make generic drugs, they cost less than their brand-name counterparts. “Also, multiple manufacturers can apply to market the same generic drug, which creates competition to lower prices even more,” Tattika adds.

Does it always makes sense to choose a generic over the brand-name original?

NO. For medicines classified as “narrow therapeutic index drugs”—such as certain antiseizure medicines—it could make sense to stick with a brand-name drug if the doctor recommends it. For other patients, a generic may work perfectly, though they should be carefully monitored.


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Do most doctors know when a generic equivalent is available?

NO. There are a lot of medicines out there, and it’s hard for doctors to know when new generics come on the market—let alone which ones are covered by insurance immediately after they are released. If doctors don’t specify that the patient must get the brand-name product, pharmacists in California are allowed to substitute a generic as long as they tell the patient.

Are doctors generally aware of what consumers and insurers pay for drugs?

NO. Again, there are many medicines on the market, and doctors usually don’t know what they cost—although they might be made aware by patients who can’t afford their copays.


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Do generic drugs look the same as their brand-name counterparts?

NO. Generic drugs can look quite different than their brand-name counterparts, despite having the same active ingredient, strength, uses, form, route of administration, and labeling.

Do generic drugs save the healthcare system money?

YES. Generic drugs have saved the US healthcare system $1.67 trillion in the last decade. According to Tattika, Medicare savings amounted to $77 billion and Medicaid savings of $37.9 billion.

Are most drugs that are dispensed generic?

YES. In the US, generics account for 89% of prescriptions dispensed—but only 26% of total drug costs.


For more information about generic medicines, contact your doctor, pharmacist, or other healthcare provider. You can also consult the FDA Generic Drugs Program.

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