GlobalRPh Renal Dosing Masterv6.6
Source review / handoff

Trimethoprim/sulfamethoxazole (TMP/SMX)

One or two intact local summaries. No averaged regimen, patient-specific dose or automatic source preference.

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1 local source card selected. Local card fingerprints checked where supplied. This is not an original-document hash, source-currency guarantee or clinical approval. Record-level cautions below are the current library's cautions, not a frozen prior version.

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Clinical context remains essential

Independent clinical review is pending. Confirm indication, exact formulation/route, population, renal measure and units, kidney-function stability, dialysis prescription, interacting drugs, monitoring and source revision. An RX mirror and its original label are not independent corroboration. Missing disagreement notes do not certify agreement.

High-priority historical-source disagreement. Large pre/post-HD doses and per-dose versus per-day wording are retained exactly in meaning to expose the original discrepancy, not endorsed as a current regimen. Use a current indication-specific source before prescribing.

NIH PCP treatment and Nebraska specialist alternatives at very low kidney function are not the same as the manufacturer general not-recommended restriction. Doses expressed as mg/kg refer to trimethoprim, not combined TMP-SMX mass.

Check source scope before reading a dose

Nebraska - TMP/SMX renal adjustment and source inconsistency

Product / population
Adults; source-specific institutional guidance. Match route, indication and renal replacement modality.
Renal method
CrCl in mL/min where specified; no equation inferred.
Source revision
Published 2024-06-28
Retrieved
2026-09-05
Local review status
Locally included source-specific summary. Regimen differences are not automatically resolved.

Documented differences and cautions on this drug

All record notes are retained here, including notes about sources not selected in this review.

A half-regimen instruction is not a tablet rule

The oral mirror expresses renal adjustment as a proportion of the indication-specific regimen. Renal impairment also increases potassium-monitoring relevance.

What to reconcile: Review indication, trimethoprim amount, potassium and interactions. Do not generate an IV or Pneumocystis regimen from this fraction alone.

Source-specific interpretation; independent clinician adjudication pending.

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Professional

Nebraska - TMP/SMX renal adjustment and source inconsistency

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University of Nebraska Medical Center · Adults; source-specific institutional guidance. Match route, indication and renal replacement modality.

Renal method: CrCl in mL/min where specified; no equation inferred.
Source date: Published 2024-06-28
Retrieved: 2026-09-05

Locally included source-specific summary. Regimen differences are not automatically resolved.

Dosing / renal protocol and limits

The article's final summary uses CrCl >30 mL/min for standard indication-specific dosing, 15-30 for half the usual dose, and <15 for the FDA not-recommended category. Its embedded tables incorrectly print "<30" beside standard dosing, conflicting with that final summary; this discrepancy is not copied as a usable threshold.

Nebraska's separately described institutional alternative for CrCl <15 is 25-50% of the indication-specific total daily dose, with caution and monitoring; on HD days administer after dialysis. This is not the FDA recommendation.

Monitor potassium, sodium and kidney function. Trimethoprim can cause hyperkalemia/hyponatremia, while sulfamethoxazole metabolites can contribute to crystal-associated kidney injury. The article's modality-specific alternative doses are not generalized here because indication and dialysis details matter.

RDM30-094-tmp-smx-1 · Source locator: Nebraska - TMP/SMX renal adjustment and source inconsistency; renal/dosing sections and stated qualifiers

Source-specific limits

Source contains an internal inequality inconsistency. Institutional alternatives and FDA-described restrictions are distinct.

Source identity and provenance
Source
https://blog.unmc.edu/infectious-disease/2024/06/28/pharmtoexamtable-part-2-why-should-sulfamethoxazole-trimethoprim-bactrim-be-used-with-caution-in-patients-with-renal-impairment-or-those-on-dialysis/
Retrieved
2026-09-05
Renal-function method
CrCl in mL/min where specified; no equation inferred.
Source date/version
Published 2024-06-28
Hash meaning
Locally authored summary text; not original SPL, HTML or PDF bytes
Local summary SHA-256
538668d618bec804f8bfe07f9bc672083fd688e71ee89a7d1ea9195c5bdb3e1f

Document the clinical decision separately

This reference does not select a regimen. Complete the indication, measured/estimated renal function and trend, dialysis setting, source rationale, monitoring and reassessment plan in your institution's approved documentation system. Confirm the complete current source before adopting its regimen.

GlobalRPh v6.6 | RDM66-DIRECT-PHP-20260911 | Local library date 2026-09-11. Selected-card identity does not imply clinical verification.

Pinned reference: https://globalrph.com/blogCalcs/renal-dosing-master/compare.php?id=tmp-smx&s1=RDM30-094-tmp-smx&h1=73af94eea5a0747ebd6450f522e71a943866d26220f7071ad05b2dff4e44455f