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Two medicines, side by side

Bosutinib vs nilotinib

Bosutinib and nilotinib are both labeled for leukemia and lymphoma and myeloma. Drugs@FDA records approvals of bosutinib since 2012 and of nilotinib since 2007. How each works, in its label's words: Bosutinib, “Bosutinib inhibits the BCR-ABL kinase that promotes CML; it is also an inhibitor of Src-family kinases including Src, Lyn, and Hck.”; Nilotinib, “Nilotinib is an inhibitor of the BCR-ABL kinase.”

Check it at the source: the bosutinib FDA label on DailyMed (effective March 10, 2026); the nilotinib FDA label on DailyMed (effective December 16, 2025).

Highlights of the bosutinib record

Bosutinib (Bosulif) · label of March 10, 2026

Used for

From the label: indications

BOSULIF is indicated for the treatment of: • Adult and pediatric patients 1 year of age and older with chronic phase (CP) Philadelphia chromosome-positive chronic myelogenous leukemia (Ph+ CML), newly-diagnosed or resistant or intolerant to prior therapy [see Clinical Studies ( 14.1 , 14.2 , 14.3 )]. […]

On the market

Earliest approval on file
September 4, 2012
Generic labelers
3 labelers
Pharmacy cost
Not in the survey

Supply and safety

Shortage
No current entry
Recalls
0

Highlights of the nilotinib record

Nilotinib (Tasigna) · label of December 16, 2025

Boxed warning

QT PROLONGATION and SUDDEN DEATHS Tasigna prolongs the QT interval. Prior to Tasigna administration and periodically, monitor for hypokalemia or hypomagnesemia and correct deficiencies [see Warnings and Precautions (5.2)]. Obtain ECGs to monitor the QTc at baseline, seven days after initiation, and periodically thereafter, and following any dose adjustments [see Warnings and Precautions (5.2, 5.3, 5.7, 5.12)].

Used for

From the label: indications

Tasigna is a kinase inhibitor indicated for the treatment of: Adult and pediatric patients greater than or equal to 1 year of age with newly diagnosed Philadelphia chromosome positive chronic myeloid leukemia (Ph+ CML) in chronic phase. ( 1.1 ) Adult patients with chronic phase (CP) and accelerated phase (AP) Ph+ CML resistant to or intolerant to prior therapy that included imatinib. […]

On the market

Earliest approval on file
October 29, 2007
Generic labelers
6 labelers
Pharmacy cost
Not in the survey

Supply and safety

Shortage
No current entry
Recalls
2

Source: FDA drug labels via openFDA (Bosutinib label of March 10, 2026, Nilotinib label of December 16, 2025); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do bosutinib and nilotinib differ on the record?

How each works, in its label's words: Bosutinib, “Bosutinib inhibits the BCR-ABL kinase that promotes CML; it is also an inhibitor of Src-family kinases including Src, Lyn, and Hck.”; Nilotinib, “Nilotinib is an inhibitor of the BCR-ABL kinase.”

Only the nilotinib label carries a boxed warning.

Both are in FDA's class kinase inhibitors.

Generics: bosutinib since 2025; nilotinib since 2024 (Drugs@FDA).

BosutinibNilotinib
Labeled forLeukemia, lymphoma and myelomaLeukemia, lymphoma and myeloma
Pharmacologic classKinase InhibitorKinase Inhibitor
How it works (label)Bosutinib is a TKI. Bosutinib inhibits the BCR-ABL kinase that promotes CML; it is also an inhibitor of Src-family kinases including Src, Lyn, and Hck.Nilotinib is an inhibitor of the BCR-ABL kinase. Nilotinib binds to and stabilizes the inactive conformation of the kinase domain of ABL protein.
Half-life (label)n/aElimination The mean (CV%) apparent elimination half-life is estimated to be approximately 17 hours (69%) and the mean (CV%) apparent clearance approximates 29 L/h (61%).
Earliest approval on file (Drugs@FDA)September 4, 2012October 29, 2007
First generic approvedMay 23, 2025January 5, 2024
Generic labelers (NDC)3 labelers6 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)n/an/a
12-month price changen/an/a
Boxed warningNoYes
Shortage nowNo current entryNo current entry
Recalls recorded02
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)8,93129,318
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

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