The short answer
A brand name is the special, trademarked name a company gives a drug. The generic name is the drug's own nonbrand name, shared by any version of it. A generic drug has the same active ingredient as the brand-name version and is often less expensive. Which name you see does not change the active drug, and your care team and pharmacist can explain your options.
A brand name is the special, trademarked name a company gives a particular drug.
A generic name is the drug's own nonbrand name, used for any version of that drug.
A generic drug has the same active ingredient as the brand-name version.
Generic drugs are often less expensive than brand-name drugs.
Choose how you want to understand this
The full explanation.
The short version
When you look at a medicine, you may see two different names. That can be confusing, but the difference is simple:
- A brand name is the special, trademarked name a company gives a particular drug.
- A generic name is the drug's own nonbrand name, shared by any version of that drug.
A generic drug has the same active ingredient as the brand-name version, and it is often less expensive.
Two names for one medicine
Many medicines carry two names. The brand name is chosen and trademarked by the company that makes it. The generic name refers to the drug itself, not to one company's version. So the same medicine can appear under a brand name and, separately, under its generic name. Seeing the generic name does not mean it is a different drug.
What "same active ingredient" means
The active ingredient is the part of a drug that acts against the disease it is used to treat. A generic drug has the same active ingredient as its brand-name version. That is the key point people often want to know: it is the same active drug, listed under a different name.
Cost
Generic drugs are often less expensive than brand-name drugs. Because cancer treatment can be costly, this difference can matter. Prices and insurance coverage vary from medicine to medicine and plan to plan, so the best way to understand your own costs is to ask your care team, your pharmacist, or your insurance plan about your specific medicine.
Knowing what you are taking
Your prescription label and your pharmacist can tell you both the brand name and the generic name of your medicine, and whether you are receiving a brand-name or a generic version. If you are ever unsure which you have, it is a common and reasonable question to ask. Keeping a simple list of your medicines, with both names, can help you and your care team stay on the same page.
The bottom line
A brand name is a company's trademarked name for a drug; a generic name is the drug's own nonbrand name; and a generic drug shares the same active ingredient as the brand-name version, often at a lower price. This page is general education — your care team and pharmacist can explain what applies to your treatment and help if cost is a concern.
Words to know
Tap any term to see what it means.
Common questions
What is the difference between a brand name and a generic name?
A brand name is the special, trademarked name that a company gives a drug. The generic name is the drug's own nonbrand name, which any version of the drug shares. So the same medicine can be sold under a brand name and, later, under its generic name.
Does a generic drug work differently from the brand-name version?
A generic drug has the same active ingredient as the brand-name version. The active ingredient is the part of the drug that acts against the disease. Your care team and pharmacist can answer questions about a specific medicine, since details can vary and only they know your full situation.
Why are generic drugs usually cheaper?
Generic drugs are often less expensive than brand-name drugs. This can matter for the cost of cancer treatment. Cost and coverage vary, so it helps to ask your care team, pharmacist, or insurance plan about the price of your specific medicine.
How do I know which one I am getting?
Your prescription label and your pharmacist can tell you the brand name and the generic name of your medicine, and whether you are receiving a brand-name or generic version. If you are unsure, ask — it is a common and reasonable question.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Your next step
Plain-language definitions for both sides of the comparison.
Speak With Trained Specialists & Human Navigators
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Immediate emergency guidance for fever (>100.4°F during chemo), severe pain, or shortness of breath.
Help Us Improve This Guide
Did this explanation answer your question and help you determine your next step?
Know someone who needs this?
Plenty of people are looking for something like this and do not know where to start. If this would help a friend or someone you love, send it on — we have written an opening line so you do not have to stare at an empty message. You can change every word of it.
Your message is written and sent in your own email or messaging app — we never see who you send it to, and nothing is added to any list.
Knowledge Check
0 of 5 answered
This self-assessment checks understanding of educational content only. It is not medical advice.
Plain-language explanation of the federal sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Last updated: 2026-07-14Next planned review: 2027-07-14
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Source verified. This page was created with AI assistance and checked against the sources listed on it. Source checking is not a medical review.
General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.
Human medical review: not completed. Cancer Explained is not clinician-reviewed, and that is a deliberate design choice rather than a gap we are waiting to close. We restate published federal guidance and cite it; the authority belongs to the source, not to us. That is why every page names where its claims come from — so you can verify us instead of trusting us. Use it to understand your situation and to ask better questions of the people treating you.
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source verified — This page was created with AI assistance and checked against the sources listed on it. Source checking is not a medical review.
Human medical review: not completed. Cancer Explained is not clinician-reviewed, and that is a deliberate design choice rather than a gap we are waiting to close. We restate published federal guidance and cite it; the authority belongs to the source, not to us. That is why every page names where its claims come from — so you can verify us instead of trusting us. Use it to understand your situation and to ask better questions of the people treating you.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.
Related articles
Still have questions?
Educational answers, plain language
Free to print and share