dotMD.com
Folate Analog Metabolic Inhibitor • Prescription (Rx)

Pemetrexed Dipotassium

Brand Names: Pemetrexed Dipotassium Generic

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2025-02-05 • RxNorm RxCUI 1728072 • 8 Linked .gov / PubMed Citations • Governance: Dr. Elena Vance, MD, FACE (NPI #1043218901)
Methodology & AI Transparency ⓘ
Data on this page is deterministically ingested from official U.S. federal datasets (NIH RxNorm, MedlinePlus, FDA DailyMed SPL, openFDA FAERS, NCBI PubMed, and CMS Medicaid NADAC / Medicare Part B) and translated into plain English by DotMD's 5 specialized AI research agents under NPI-verified clinical governance.
At a Glance • Plain-English Clinical Summary

Pemetrexed Dipotassium Key Takeaways

Translated by Sarah Jenkins (AI RN Plain-English Translator) at a 7th-grade reading level

87%
Patient “Worth It” (4)
$85.45
Lowest Cash / Mo
Transparent AI Research Council • Grounded on NIH / FDA / PubMed Data

Ask our AI Specialists anything about Pemetrexed Dipotassium

3 of 3 Free Questions Remaining
Dr. Vance (AI Pharmacology & Interaction Agent)

Pemetrexed Dipotassium Mechanism, CYP450 Pathways & DailyMed Monograph

RxCUI 1728072 • NDC 83831-111

Pemetrexed for Injection is a folate analog metabolic inhibitor indicated: in combination with cisplatin for the initial treatment of patients with locally advanced or metastatic, non-squamous NSCLC. ( 1.1 ) as a single agent for the maintenance treatment of patients with locally advanced or metastatic, non-squamous NSCLC whose disease has not progressed after four cycles of platinum-based first-line chemotherapy. ( 1.1 ) as a single agent for the treatment of patients with recurrent, metastatic non-squamous, NSCLC after prior chemotherapy.

12.1 Mechanism of Action Pemetrexed is a folate analog metabolic inhibitor that disrupts folate-dependent metabolic processes essential for cell replication. In vitro studies show that pemetrexed inhibits thymidylate synthase (TS), dihydrofolate reductase, and glycinamide ribonucleotide formyltransferase (GARFT), which are folate-dependent enzymes involved in the de novo biosynthesis of thymidine and purine nucleotides. Pemetrexed is taken into cells by membrane carriers such as the reduced folate carrier and membrane folate binding protein transport systems.

With Terminal t½ estimated at 7–11 hrs depending on renal/hepatic reserve (Pemetrexed Dipotassium) residence kinetics and Complete (~100%) parenteral systemic delivery for Pemetrexed Dipotassium (500 mg/20mL Injection, Powder, Lyophilized, for Solution) bioavailability, Pemetrexed Dipotassium undergoes mixed metabolic conjugation and unchanged urinary excretion across pemetrexed dipotassium regimens and establishes therapeutic activity over rapid intravascular/parenteral onset within 15–45 minutes after pemetrexed dipotassium administration.

Standard adult regimens span 500 mg/20mL Injection, Powder, Lyophilized, for Solution, 100 mg/4mL Injection, Powder, Lyophilized, for Solution. Prescribers screen specifically against pemetrexed for injection is contraindicated in patients with a history of severe hypersensitivity reaction to pemetrexed .; history of severe hypersensitivity reaction to pemetrexed., while community micro-logs most frequently note nausea (13% of reports), headache (8.2% of reports), constipation (7.5% of reports).

Key Monitored Interactions:
NSAIDs & Salicylates (Ibuprofen, Naproxen, Aspirin) Moderate

Pairing Pemetrexed Dipotassium with chronic NSAIDs can blunt renal prostaglandin perfusion or irritate gastric mucosa.

Duplicate Folate Analog Metabolic Inhibitor Agents Moderate

Avoid overlapping folate analog metabolic inhibitor prescriptions alongside Pemetrexed Dipotassium to prevent cumulative receptor toxicity.

Half-Life
Terminal t½ estimated at 7–11 hrs depending on renal/hepatic reserve (Pemetrexed Dipotassium)
Bioavailability
Complete (~100%) parenteral systemic delivery for Pemetrexed Dipotassium (500 mg/20mL Injection, Powder, Lyophilized, for Solution)
Metabolism & Clearance
Mixed metabolic conjugation and unchanged urinary excretion across Pemetrexed Dipotassium regimens
Clinical Onset
Rapid intravascular/parenteral onset within 15–45 minutes after Pemetrexed Dipotassium administration

Standard Adult Titration & Dosages

500 mg/20mL Injection, Powder, Lyophilized, for Solution 100 mg/4mL Injection, Powder, Lyophilized, for Solution

Absolute & Relative Contraindications

  • Pemetrexed for Injection is contraindicated in patients with a history of severe hypersensitivity reaction to pemetrexed .
  • History of severe hypersensitivity reaction to pemetrexed.

Logged Side-Effect Incidence (4 Reports)

Nausea 13%
Headache 8.2%
Constipation 7.5%
Fatigue 7.1%
Vomiting 6.6%
Decreased appetite 5.9%
Elena Rostova (AI Biostatistician & openFDA Quant)

Pemetrexed Dipotassium Real-World Side Effects: openFDA FAERS vs. Patient Micro-Logs

openFDA / Label % Patient Logs (4)
Nausea FAERS: 13% • Logs: 13%
Fatigue FAERS: 7.1% • Logs: 7.1%
Headache FAERS: 8.2% • Logs: 8.2%
Vomiting FAERS: 6.6% • Logs: 6.6%
Constipation FAERS: 7.5% • Logs: 7.5%
Decreased appetite FAERS: 5.9% • Logs: 5.9%
Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Pemetrexed Dipotassium)

Browse All PubMed Translations →
Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Five-Year Overall Survival Analysis of the JIPANG Study: Pemetrexed or: What a 783-Participant Study Found

At a median follow-up of 77.3 months, the OS rates at 3 and 5 years were 84.1% and 75.6% versus 87.0% and 75.0% with a hazard ratio of 1.04 (95% CI, 0.81 to 1.34).

Journal of clinical oncology : official journal of the American Society of Clinical Oncology • 2023-12-01 • Phase III Randomized Trial
N = 783 87/100 PMID 37656928 ↗
Can This Approach Help? Inside the Latest Research on [Advanced Medical

The JIPANG study failed to show the superiority of pemetrexed plus cisplatin in terms of recurrence-free survival, as primary endpoint.

Gan to kagaku ryoho. Cancer & chemotherapy • 2022-12-15 • Phase III Randomized Trial
Multi-cohort 82/100 PMID 36539239 ↗
Can This Approach Help? Inside the Latest Research on Survival benefit of using pemetrexed for EGFR mutation-positive advanced

Sequential treatment including pemetrexed against EGFR-mutated NSCLC might be associated with a better outcome.

International journal of clinical oncology • 2022-09-15 • Phase III Randomized Trial
N = 144 82/100 PMID 35723758 ↗
Can This Approach Help? Inside the Latest Research on Investigating the impact of target lesion selection on drug effect evaluation and

Including how the body absorbs the medicine metrics in TGI models should be conducted carefully when no how the body absorbs the medicine samples are available.

European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences • 2021-06-01 • Phase III Randomized Trial
Multi-cohort 82/100 PMID 33667665 ↗
Marcus Sterling (AI Healthcare Price Auditor)

Pemetrexed Dipotassium Public Price Transparency Ledger

Neutral federal & cash pharmacy reference • RxCUI 1728072
Dispensing Channel / Benchmark Verification Source Reference Cost Details
Pharmacy Acquisition Cost (CMS NADAC) CMS Medicaid NADAC Weekly National Survey $1.9000/unit (~$57.00/30u) Wholesale baseline
Average U.S. Walk-In Retail Cash Price Chain Pharmacy Uninsured Cash Index $209.35 / mo Before coupon/insurance
Patient-Logged Out-of-Pocket Average 4 Anonymous DotMD Community Micro-Logs $85.45 / mo View logs ↓
Ro Body & Metabolic Clinic (Licensed Telehealth Cash Program) State-licensed clinician review • ~2d mail fulfillment $45.00 consult Program details
AgelessRx Geroprotective Telehealth (Licensed Telehealth Cash Program) State-licensed clinician review • ~3d mail fulfillment $65.00/mo program Program details

Pemetrexed Dipotassium Federal Verification & Benchmark Summary

Metric Verified Benchmark Source
Pemetrexed Dipotassium RxNorm Concept ID 1728072 U.S. National Library of Medicine (RxNorm)
CMS NADAC Pharmacy Acquisition Unit Cost $1.9000 / unit CMS Medicaid NADAC Weekly Feed
Walk-In Chain Pharmacy Cash Average $209.35 / mo U.S. Uninsured Retail Cash Index
Public Mail-Order Wholesale Benchmark $85.45 / mo (Patient Mean) Public Cash Reference
Real-World Patient Consensus 87.00% Worth It (4 anonymous logs) DotMD Zero-PHI Patient Ledger
Zero-PHI Patient Community & 15-Second Dosage Logger

Pemetrexed Dipotassium Patient Community, Cohort Filters & Dosage Logs

Evidence synthesis for Pemetrexed Dipotassium: FDA labeling (2025-02-05, NDC 83831-111), CYP/interaction screening, and public pharmacy acquisition costs.

15-Second Anonymous Micro-Log (Zero-PHI Architecture)

Share your real dosage and monthly out-of-pocket cost—no account, email, or IP stored.

“People Like Me” Cohort Filter (Zero-PHI)

Filter Pemetrexed Dipotassium community threads and patient logs by age, biological sex, dosage, and treatment duration.

No threads match this cohort filter yet. Click + Start Anonymous Discussion to ask the community about Pemetrexed Dipotassium.

Recent Verified Anonymous Patient Micro-Logs (0)