Single-dose oral dexamethasone,
does it really help with Complete resolution of acute sore throat within 24 hours without antibiotics?
research showsA single dexamethasone dose is rated D because the primary endpoint failed. Hayward 2017 randomized 576 participants and analyzed 565 after excluding 11 later found ineligible. Complete resolution at 24 hours was 22.6% versus 17.7%, RR 1.28 (95% CI 0.92 to 1.78), P=.14. The 48-hour result of 35.4% versus 27.1%, P=.03, was a prespecified secondary endpoint.
ads claimMarketing can transform 48-hour or antibiotic-adjunct evidence into a claim of standalone cure within one day.
Useful facts when choosing a product
- TOAST evaluated one 10-mg oral dexamethasone dose.
- Participants were adults in primary care who did not require immediate antibiotics.
Chamgap Semantic Classification Code
Candidate index · review held
M.oral-dexamethasone.oral.complete-resolution-of-acute-sore-throat-within-without-antibiotics.assess.placeboMedicinal interventions > oral dexamethasone > Oral > Complete resolution of acute sore throat within without antibiotics > Association or change assessment > Placebo
An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.
What the research actually shows
Hayward 2017 randomized 576 participants and analyzed 565 after excluding 11 found ineligible: 288 dexamethasone and 277 placebo. The 24-hour complete-resolution primary endpoint failed at 22.6% versus 17.7%, RR 1.28 (95% CI 0.92 to 1.78), P=.14. Complete resolution at 48 hours was 35.4% versus 27.1%, P=.03, but it was a prespecified secondary endpoint.
Why this is classified as D (34)
The direct 24-hour primary endpoint failed, the 48-hour result was secondary, and synthesis evidence was mainly adjunctive to antibiotics, yielding D with 34 points.
Counterpoint. Possible short-term adjunctive benefit for severe swallowing pain does not justify repeated or self-directed use.
Rejudgment record. Cross-check applied — Applied rule ①-ⓑ because the 24-hour complete-resolution primary endpoint without immediate antibiotics failed and was not upgraded by a positive 48-hour secondary endpoint or mostly antibiotic-adjunct synthesis evidence
Sub-claim grades by effect
This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.
| Effect (sub-claim) | Grade | Basis |
|---|---|---|
| Complete sore-throat resolution within 24 hours without immediate antibiotics | D | The direct primary endpoint failed with P=.14. |
| Complete sore-throat resolution within 48 hours without immediate antibiotics | C | The result was positive but was a prespecified secondary endpoint from one confirmatory trial. |
| Complete sore-throat resolution within 24 hours when added to antibiotics | C | The pooled effect was positive, but trials were small and heterogeneous. |
Cross-check — AI research and Codex final gate
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Hayward GN et al. 2017 | Multicenter double-blind placebo-controlled randomized trial | 576 randomized; 11 later found ineligible excluded, actual primary analysis 565 (288/277) | Public funding from the United Kingdom NIHR School for Primary Care Research; sponsor had no role in conduct or analysis | Primary endpoint of patient-reported complete sore-throat resolution at 24 hours | Primary endpoint failed: 22.6% versus 17.7%, RR 1.28 (95% CI 0.92 to 1.78), P=.14. The 48-hour result of 35.4% versus 27.1%, P=.03, was a prespecified secondary endpoint. | Pivotal negative trial directly matching the claim |
| de Cassan S et al. 2020 Cochrane review | Systematic review of randomized trials | Nine trials and 1,319 participants; eight trials gave immediate antibiotics to both arms | Only two included trials reported funding, from government and a university foundation; others did not report it | Complete pain resolution at 24 and 48 hours | The 24-hour RR was positive at 2.40, but the evidence was mostly adjunctive to antibiotics and indirect for standalone treatment. | Positive synthesis with limited directness |
Receipt — 2 References
All 2 cited sources were verified for existence at the original page (as of 2026-07-24).
Final verification and publication gate: Codex · Evidence date: 2026-07-24 · Corrections: none
Cite this verdict
[Chamgap] Single-dose oral dexamethasone x complete sore-throat resolution within 24 hours — Evidence Grade D·34. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/immunity/single-dose-oral-dexamethasone-sore-throat-24h-without-antibiotics/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
What this document does and does not do
Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.