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Preventive Screening & Blood Biomarkers • ICD-10-CM T42.0X1A

Phenytoin toxicity

Also known as: Overdose, Toxicity, Intoxication, Poisoning

Audited by the DotMD AI Specialist Council • FDA DailyMed SPL: 2026-11-02 • ICD-10-CM T42.0X1A • 8 Linked .gov / PubMed Citations • Governance: Dr. Marcus Thorne, MD, FACC (NPI #1184629314)
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

Phenytoin toxicity Key Takeaways

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

Transparent AI Research Council • Grounded on NIH / FDA / PubMed Data

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What Is Phenytoin toxicity?

Cataloged under federal diagnostic code T42.0X1A in Preventive & Labs, Phenytoin toxicity (also termed Overdose or Toxicity) requires evidence-based risk stratification in Phenytoin toxicity (T42.0X1A: pairing lifestyle nutrition/exercise) so specialists can calibrate treatment intensity against CBC, CMP & in Phenytoin toxicity (T42.0X1A: eGFR Baseline) benchmarks.

Pathophysiology, Underlying Causes & Clinical Presentation

In Phenytoin toxicity (T42.0X1A), physiological disruption stems from early biomarker detection in Phenytoin toxicity (T42.0X1A: allowing low-intensity lifestyle), informing Preventive Screening & Blood Biomarkers protocols that track 25-Hydroxy Vitamin D, in Phenytoin toxicity (T42.0X1A: Ferritin & B12) (25(OH)D 40–65 ng/mL; Ferritin 50–150 ng/mL (T42.0X1A)).

Common Symptoms & Clinical Signs

  • • Presentation of Phenytoin toxicity (T42.0X1A): follow-up of borderline in Phenytoin toxicity (T42.0X1A: laboratory values before)
  • • Secondary Phenytoin toxicity clinical sign: subtle fatigue, recovery in Phenytoin toxicity (T42.0X1A: lag, or micronutrient)
  • • Symptom flares in Phenytoin toxicity correlating with CBC, CMP & in Phenytoin toxicity (T42.0X1A: eGFR Baseline) deviation outside Within optimal preventive reference intervals (T42.0X1A)
  • • Functional preventive & labs impact requiring evidence-based risk stratification in Phenytoin toxicity (T42.0X1A: pairing lifestyle nutrition/exercise) evaluation (T42.0X1A)

Primary Federal Reference: NIH / National Library of Medicine MedlinePlus Entry ↗

Phenytoin toxicity Diagnostic Classification & Lab Markers

Metric Verified Benchmark Source
ICD-10-CM Diagnostic Code T42.0X1A WHO / CMS ICD-10-CM Clinical Classification
Clinical Specialty Hub Preventive Screening & Blood Biomarkers NIH MedlinePlus Health Topics
Diagnostic / Lab Marker: CBC, CMP & in Phenytoin toxicity (T42.0X1A: eGFR Baseline) Within optimal preventive reference intervals (T42.0X1A) Clinical Reference Target Range
Diagnostic / Lab Marker: 25-Hydroxy Vitamin D, in Phenytoin toxicity (T42.0X1A: Ferritin & B12) 25(OH)D 40–65 ng/mL; Ferritin 50–150 ng/mL (T42.0X1A) Clinical Reference Target Range
Diagnostic / Lab Marker: ApoB, HbA1c & in Phenytoin toxicity (T42.0X1A: hs-CRP Triad) ApoB < 80 mg/dL; HbA1c < 5.5%; hs-CRP < 1.0 mg/L (T42.0X1A) Clinical Reference Target Range
Marcus Sterling (AI Healthcare Price Auditor) & Dr. Vance

FDA-Monographed Medications & Public Cash Price Reference for Phenytoin toxicity

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Medication Pharmacologic Class Patient Worth-It CMS NADAC / Unit Typical Lowest Cash
Dilantin Infatabs (Phenytoin) Dilantin Infatabs • RxCUI 1313885-B00710007 Anti-epileptic Agent 74% $1.5696 $ 121.51 /mo
Extended Phenytoin Sodium Phenytek, Dilantin • RxCUI 855861 Anti-epileptic Agent 89% $1.4015 $ 65.26 /mo
Dilantin (Extended Phenytoin Sodium) Dilantin • RxCUI 855671-B58151110 Anti-epileptic Agent 85% $0.1392 $ 7.10 /mo
Phenytoin Dilantin-125, Dilantin Infatabs • RxCUI 1313112 Anti-epileptic Agent 77% $0.1812 $ 7.10 /mo
Pioglitazole and Metformin Hydrochloride Pioglitazole and Metformin Hydrochloride Generic • RxCUI RXN-721622497-2242 Biguanide 84% $1.6200 $ 74.11 /mo
Dilantin-125 (Phenytoin) Dilantin-125 • RxCUI 1313885-B58151115 Anti-epileptic Agent 88% $0.0796 $ 14.23 /mo
Spironolactone and Hydrochlorothiazide Spironolactone and Hydrochlorothiazide Generic • RxCUI 198224 Aldosterone Antagonist 89% $0.4833 $ 28.07 /mo
Phenytoin Sodium Phenytek, Dilantin • RxCUI 1670351 Anti-epileptic Agent 90% $0.0796 $ 7.10 /mo
Phenytek (Extended Phenytoin Sodium) Phenytek • RxCUI 855863 Anti-epileptic Agent 92% $1.4015 $ 109.41 /mo
Dr. Lin (AI PubMed Clinical Trial Lead)

Peer-Reviewed Human Clinical Trials & Meta-Analyses (Phenytoin toxicity)

Browse All PubMed Translations →
Study & Plain-English Finding Sample (N) Rigor Primary Source
New Insights on Benefits and safety of HSK3486 for Anesthesia/Sedation in Patients Undergoing: What a 267-Participant Study Found

HSK3486 exhibited non-inferiority anesthesia/sedation compared to propofol in patients undergoing fiberoptic bronchoscopy, and had a good safety profile with a lower incidence of pain on injection.

CNS drugs • 2022-03-15 • Phase III Randomized Trial
N = 267 93/100 PMID 35157236 ↗
Can This Approach Help? Inside the Latest Research on IV Fosphenytoin for Acute Trigeminal Neuralgia: A Multicenter, Randomized,

Of 31 participants screened, 22 were randomized; 1 placebo-assigned participant did not meet the NRS ≥5 criterion and was excluded, leaving 21 for analysis (IFT: 11; placebo: 10).

Neurology • 2026-06-09 • Phase III Randomized Trial
Multi-cohort 88/100 PMID 42096672 ↗
New Insights on AVOID; a phase III, randomised controlled trial using indocyanine green for the: What a 978-Participant Study Found

This protocol has been approved by the Medical Ethical Committee Leiden-Den Haag-Delft (METC-LDD) and is registered at ClinicalTrials.gov and trialregister.nl.

BMJ open • 2022-04-01 • Phase III Randomized Trial
N = 978 87/100 PMID 35365509 ↗
Plant Protein vs. Whey: Which One Actually Builds Muscle Better?

Soy- and pea-based protein supplements may support favorable muscle and body-fat improvements in adults strength training and could be considered practical nutritional options for individuals seeking alternatives to whey protein.

Journal of the International Society of Sports Nutrition • 2026-12-30 • Meta-Analysis
Multi-cohort 86/100 PMID 42954267 ↗
Can This Approach Help? Inside the Latest Research on Dosimetric Evaluation of Organs at Risk From SAVE

Experimental short-course VCB of 11 Gy × 2 fx to the surface provides a comparable biologically effective dose to SOC courses.

International journal of radiation oncology, biology, physics • 2023-09-01 • Phase III Randomized Trial
Multi-cohort 82/100 PMID 37023988 ↗
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Phenytoin toxicity Patient Community & “People Like Me” Threads

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