Keytruda vs Opdivo

A side-by-side look at two oncology medications advertised on TV. Informational only — not medical advice.

Share

Information reviewed July 24, 2026

US KeytrudaUS Opdivo
Generic namepembrolizumabnivolumab
Drug classPD-1 Inhibitor (Immunotherapy)PD-1 Inhibitor (Immunotherapy)
TreatsMultiple cancersMultiple cancers
CategoryOncologyOncology
ManufacturerMerckBristol-Myers Squibb
Year approved20142014
FDA warningModerate warningsModerate warnings
Est. TV ad spend$260M$150M
Common side effectsImmune-related side effects, Fatigue, Rash, DiarrheaImmune-related side effects, Fatigue, Rash, Diarrhea

Frequently asked questions

Is Keytruda or Opdivo better?

Neither is universally "better." Keytruda (pembrolizumab) and Opdivo (nivolumab) are both used for oncology, but the right choice depends on your medical history, insurance and your doctor's guidance. This comparison is informational only.

What's the difference between Keytruda and Opdivo?

Keytruda is a PD-1 Inhibitor (Immunotherapy) made by Merck, while Opdivo is a PD-1 Inhibitor (Immunotherapy) made by Bristol-Myers Squibb. See the table above for a side-by-side breakdown.

Which one spends more on TV ads?

Keytruda has the larger estimated TV advertising budget of the two.

TVPills

A reference tool to help identify prescription medications and supplements seen in television advertising. This is not medical advice. Always consult a healthcare professional.

TVPills is independent and not affiliated with, endorsed by, or sponsored by any drug manufacturer or brand. All trademarks are the property of their respective owners. Some links are affiliate links; we may earn a commission at no extra cost to you.