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Record W4416941498 · doi:10.1080/17582024.2025.2577054

Practices and perceptions around splitting of carbidopa/levodopa tablets: a survey of patients and neurologists

2025· article· en· W4416941498 on OpenAlex
Ramon L. Rodriguez, Stuart Isaacson, Yasar Torres‐Yaghi, Rajesh Pahwa, David Holecek, Ahmad Al‐Sabbagh

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueNeurodegenerative Disease Management · 2025
Typearticle
Languageen
FieldMedicine
TopicPharmaceutical studies and practices
Canadian institutionsCentre for Movement Disorders
Fundersnot available
KeywordsPerceptionPillClinical PracticeMEDLINEBest practice

Abstract

fetched live from OpenAlex

BACKGROUND: Carbidopa/levodopa (CD/LD) remains the primary treatment for Parkinson's disease (PD) motor control symptoms. With progressing disease, for better symptom management, patients often split immediate-release CD/LD tablets-research on this practice is limited. OBJECTIVE: Survey patients with PD/caregivers, and neurologists on CD/LD pill-splitting practices and motor complications' impact on quality of life (QoL). METHODS: We surveyed 101 patients/caregivers and 120 neurologists. RESULTS: All agreed that motor control symptoms substantially affect QoL, particularly as PD progresses. 47% of patients surveyed halved immediate-release CD/LD tablets, and 27% fragmenting them further, with 27% and 18% finding it easy and accurate, respectively. Pill splitters reported longer disease duration, more advanced PD, worse motor fluctuations/dyskinesia control, and QoL. Neurologists reported dissatisfaction with CD/LD treatments for advanced disease, noting 44.9% of patients split tablets with, and 21.9% without, physician recommendation. CONCLUSIONS: Pill splitting is common but burdensome and imprecise. Further research is needed to evaluate clinical impact.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.455

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.053
GPT teacher head0.371
Teacher spread0.318 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it