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Two medicines, side by side

Clindamycin vs levofloxacin

Clindamycin and levofloxacin are both labeled for bacterial infections. Drugs@FDA records approvals of clindamycin since 1970 and of levofloxacin since 1996. Pharmacies paid $0.137 per gram (Clindamycin ph 1% gel) and $0.259 per levofloxacin 750 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, clindamycin is a lincosamide antibacterial and levofloxacin a fluoroquinolone antibacterial.

Check it at the source: the clindamycin FDA label on DailyMed (effective March 10, 2026); the levofloxacin FDA label on DailyMed (effective July 10, 2024).

Highlights of the clindamycin record

Clindamycin (Cleocin) · label of March 10, 2026

Boxed warning

Clostridioides difficile -associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including clindamycin hydrochloride and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon, leading to overgrowth of C. difficile.

Used for

From the label: indications

Clindamycin is indicated in the treatment of serious infections caused by susceptible anaerobic bacteria. Clindamycin is also indicated in the treatment of serious infections due to susceptible strains of streptococci, pneumococci, and staphylococci. Its use should be reserved for penicillin-allergic patients or other patients for whom, in the judgment of the physician, a penicillin is inappropriate. […]

On the market

Earliest approval on file
February 22, 1970
Generic labelers
60 labelers
Pharmacy cost
$0.137 per gram

Supply and safety

Shortage
In shortage
Recalls
24

Highlights of the levofloxacin record

Levofloxacin (Levaquin) · label of July 10, 2024

Boxed warning

SERIOUS ADVERSE REACTIONS INCLUDING TENDINITIS, TENDON RUPTURE, PERIPHERAL NEUROPATHY, CENTRAL NERVOUS SYSTEM EFFECTS AND EXACERBATION OF MYASTHENIA GRAVIS See full prescribing information for complete boxed warning.

Used for

From the label: indications

Levofloxacin is a fluoroquinolone antibacterial indicated in adults (18 years of age and older) with infections caused by designated, susceptible bacteria and in pediatric patients where indicated ( 1 , 12.4 ). […]

On the market

Earliest approval on file
December 20, 1996
Generic labelers
44 labelers
Pharmacy cost
$0.259 per tablet

Supply and safety

Shortage
No current entry
Recalls
13

Source: FDA drug labels via openFDA (Clindamycin label of March 10, 2026, Levofloxacin label of July 10, 2024); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do clindamycin and levofloxacin differ on the record?

In FDA's classes, clindamycin is a lincosamide antibacterial and levofloxacin a fluoroquinolone antibacterial.

Half-life, in each label's words: Clindamycin, “Excretion The average biological half-life is 2.4 hours.”; Levofloxacin, “The mean terminal plasma elimination half-life of levofloxacin ranges from approximately 6 to 8 hours following single …”

Both labels carry a boxed warning; the records quote them.

Generics: clindamycin since 1982; levofloxacin since 2010 (Drugs@FDA).

ClindamycinLevofloxacin
Labeled forBacterial infections, AcneBacterial infections, Urinary tract infections
Pharmacologic classLincosamide AntibacterialFluoroquinolone Antibacterial
How it works (label)n/aLevofloxacin is a member of the fluoroquinolone class of antibacterial agents [see Microbiology ( 12.4 )].
Half-life (label)Excretion The average biological half-life is 2.4 hours.The mean terminal plasma elimination half-life of levofloxacin ranges from approximately 6 to 8 hours following single or multiple doses of levofloxacin given orally or intravenously.
Earliest approval on file (Drugs@FDA)February 22, 1970December 20, 1996
First generic approvedFebruary 8, 1982December 20, 2010
Generic labelers (NDC)60 labelers44 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.137 per gram (Clindamycin ph 1% gel)$0.259 per tablet (Levofloxacin 750 mg tablet)
12-month price change-10%-11%
Boxed warningYesYes
Shortage nowIn shortageNo current entry
Recalls recorded2413
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)8,96859,954
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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