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Pemetrexed

Pemetrexed is an active ingredient of the class «antimetabolite».

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Chemical compound

Informational only — not medical advice. Ask a doctor or pharmacist; never change a dose on your own.

What it is used for

PEMFEXY™ is a folate analog metabolic inhibitor indicated for: in combination with pembrolizumab and platinum chemotherapy, for the initial treatment of patients with metastatic non-squamous NSCLC, with no EGFR or ALK genomic tumor aberrations. in combination with cisplatin for the initial…

US label

Malignant pleural mesothelioma Pemetrexed in combination with cisplatin is indicated for the treatment of chemotherapy naïve patients with unresectable malignant pleural mesothelioma.

EMA

How it works

Class: antimetabolite

Common side effects

The following clinically significant adverse reactions are described elsewhere in the labeling: Myelosuppression Renal failure Bullous and exfoliative skin toxicity Interstitial pneumonitis Radiation recall The most common adverse reactions (incidence ≥ 20%) of pemetrexed, when administered as a single agent are…

US label

Who should not take it

PEMFEXY is contraindicated in patients with a history of severe hypersensitivity reaction to pemetrexed. History of severe hypersensitivity reaction to pemetrexed.

US label

Pregnancy and breastfeeding

Based on findings from animal studies and its mechanism of action, pemetrexed can cause fetal harm when administered to a pregnant woman. There are no available data on pemetrexed use in pregnant women.

Excerpts from the US prescribing label (public domain), copied without changes.

Interactions

Recorded interactions from open sources (Wikidata, US labels). The list is not complete — ask a pharmacist.

Brand names

United States

Axtle · Pemetrexed FOR Injection · Pemfexy

European Union

Pemetrexed Accord · Pemetrexed Fresenius Kabi · Pemetrexed Pfizer (previously Pemetrexed Hospira)

Canada

Taro-Pemetrexed

Other trade names

Ciambra · Pemetrexed baxter · Pemetrexed krka · Pemetrexed lilly · Pemetrexed medac · Pemetrexed pfizer (previously known as pemetrexed hospira uk limited) · Pemetrexed sandoz

Approval status

US Food and Drug Administration
prescription · since 2004
European Medicines Agency
authorised · since 2004
Health Canada
prescription · marketed
First approval anywhere
2004

Codes

ATC
L01BA04
RxNorm CUI
68446
ChEMBL
CHEMBL225072
PubChem CID
135410875
UNII
04Q9AIZ7NO
Wikidata
Q415220

Frequently asked questions

What is Pemetrexed used for?

Pemetrexed is used for: Non-small-cell lung carcinoma, Malignant pleural mesothelioma, Benign pleural mesothelioma, Bronchus carcinoma, Benign mesothelioma, Neoplasm, Mesothelioma, and Adenocarcinoma.

What kind of medicine is Pemetrexed?

Pemetrexed is an active ingredient of the class «antimetabolite».

What are the brand names of Pemetrexed?

Brand names of Pemetrexed include Axtle, Pemetrexed FOR Injection, Pemfexy, Pemetrexed Accord, Pemetrexed Fresenius Kabi, Pemetrexed Pfizer (previously Pemetrexed Hospira), Taro-Pemetrexed, and Ciambra.

Medicines in the same class

Sources and licences

Updated November 15, 2026