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Two medicines, side by side

Methotrexate vs tofacitinib

Methotrexate and tofacitinib are both labeled for rheumatoid arthritis. Drugs@FDA records approvals of methotrexate since 1953 and of tofacitinib since 2012. Pharmacies paid $0.158 per methotrexate 2.5 mg tablet and $0.573 per tofacitinib 5 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. Methotrexate's other strengths are brand-only: $21.76 per mL (Xatmep 2.5 mg/mL oral solution). In FDA's classes, methotrexate is a folate analog metabolic inhibitor and tofacitinib a janus kinase inhibitor.

Check it at the source: the methotrexate FDA label on DailyMed (effective May 27, 2026); the tofacitinib FDA label on DailyMed (effective July 13, 2026).

Highlights of the methotrexate record

Methotrexate (Rasuvo) · label of May 27, 2026

Boxed warning

EMBRYO-FETAL TOXICITY, HYPERSENSITIVITY REACTIONS, SEVERE ADVERSE REACTIONS, and RISK OF MEDICATION ERRORS Methotrexate Tablets can cause embryo-fetal toxicity, including fetal death. For non-neoplastic diseases, Methotrexate Tablets is contraindicated in pregnancy. For neoplastic diseases, advise females and males of reproductive potential to use effective contraception [see Contraindications (4), Warnings and Precautions (5.1), Use in Specific Populations (8.1 , 8.3) ].

Used for

From the label: indications

Methotrexate tablets is a dihydrofolate reductase inhibitor indicated for the: Treatment of adults and pediatric patients with acute lymphoblastic leukemia (ALL) as part of a combination chemotherapy maintenance regimen ( 1.1 ) Treatment of adults with mycosis fungoides ( 1.1 ) Treatment of adults with relapsed or refractory non-Hodgkin lymphoma as part of a metronomic combination regimen ( 1.1 ) Treatment of adults […]

On the market

Earliest approval on file
December 7, 1953
Generic labelers
29 labelers
Pharmacy cost
$0.158 per tablet

Supply and safety

Shortage
In shortage
Recalls
8

Highlights of the tofacitinib record

Tofacitinib (Xeljanz) · label of July 13, 2026

Boxed warning

SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS, and THROMBOSIS WARNING: SERIOUS INFECTIONS, MORTALITY, MALIGNANCY, MAJOR ADVERSE CARDIOVASCULAR EVENTS, and THROMBOSIS See full prescribing information for complete boxed warning.

Increased risk of serious bacterial, fungal, viral, and opportunistic infections, including tuberculosis (TB), leading to hospitalization or death.

Used for

From the label: indications

XELJANZ (tablets and oral solution) and XELJANZ XR (extended-release tablets) are Janus kinase (JAK) inhibitors. XELJANZ tablets and XELJANZ XR are indicated for the treatment of adult patients with: • Moderately to severely active rheumatoid arthritis (RA), who have had an inadequate response or intolerance to one or more TNF blockers. […]

On the market

Earliest approval on file
November 6, 2012
Generic labelers
24 labelers
Pharmacy cost
$0.573 per tablet

Supply and safety

Shortage
No current entry
Recalls
0

Source: FDA drug labels via openFDA (Methotrexate label of May 27, 2026, Tofacitinib label of July 13, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do methotrexate and tofacitinib differ on the record?

In FDA's classes, methotrexate is a folate analog metabolic inhibitor and tofacitinib a janus kinase inhibitor.

How each works, in its label's words: Methotrexate, “Methotrexate inhibits dihydrofolic acid reductase.”; Tofacitinib, “Tofacitinib is a Janus kinase (JAK) inhibitor.”

Half-life, in each label's words: Methotrexate, “Elimination The elimination half-life of methotrexate is approximately 3 to 10 hours.”; Tofacitinib, “12.3 Pharmacokinetics Following oral administration of XELJANZ (tablets and oral solution), peak plasma concentrations …”

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

Generics: methotrexate since 1979; tofacitinib since 2021 (Drugs@FDA).

MethotrexateTofacitinib
Labeled forRheumatoid arthritis, Psoriasis, Leukemia, lymphoma and myeloma, Breast cancerRheumatoid arthritis, Crohn's disease and ulcerative colitis
Pharmacologic classFolate Analog Metabolic InhibitorJanus Kinase Inhibitor
How it works (label)Methotrexate inhibits dihydrofolic acid reductase. Dihydrofolates must be reduced to tetrahydrofolates by this enzyme before they can be utilized as carriers of one-carbon groups in the synthesis of purine nucleotides and thymidylate.Tofacitinib is a Janus kinase (JAK) inhibitor.
Half-life (label)Elimination The elimination half-life of methotrexate is approximately 3 to 10 hours.12.3 Pharmacokinetics Following oral administration of XELJANZ (tablets and oral solution), peak plasma concentrations were reached within 0.5 hour - 1 hour, elimination half-life was about 3 hours and a …
Earliest approval on file (Drugs@FDA)December 7, 1953November 6, 2012
First generic approvedSeptember 5, 1979June 1, 2021
Generic labelers (NDC)29 labelers24 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.158 per tablet (Methotrexate 2.5 mg tablet)$0.573 per tablet (Tofacitinib 5 mg tablet)
12-month price change-4%n/a
Boxed warningYesYes
Shortage nowIn shortageNo current entry
Recalls recorded80
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)489,791186,746
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)

Do their labels mention each other?

Tofacitinib label, boxed warning

Most patients who developed these infections were taking concomitant immunosuppressants such as methotrexate or corticosteroids.

Tofacitinib label, warnings and precautions

Some patients have presented with disseminated rather than localized disease, and were often taking concomitant immunomodulating agents such as methotrexate or corticosteroids.

Source: FDA drug labels via openFDA

What do the labels say about using others of their kind?

Methotrexate label, drug interactions

Oral antibiotics (including neomycin) Antifolate drugs (e.g., dapsone, pemetrexed, pyrimethamine and sulfonamides) Oral or intravenous penicillin or sulfonamide antibiotics Aspirin and other nonsteroidal anti-inflammatory drugs Highly protein-bound drugs (e.g., oral anticoagulants, phenytoin, salicylates, sulfonamides, sulfonylureas, and tetracyclines) Hepatotoxic products Proton pump inhibitors Weak acids (e.g. …

Source: FDA drug labels via openFDA

What next?

Alternatives to methotrexate
every medicine labeled for the same conditions