The DOI matches its Crossref record.
Fake antimalarials in Southeast Asia are a major impediment to malaria control: multinational cross‐sectional survey on the prevalence of fake antimalarials
Abstract
Summary: Objective To assess the prevalence of counterfeit antimalarial drugs in Southeast (SE) Asia. Design Cross‐sectional survey. Setting Pharmacies and shops selling antimalarial drugs in Myanmar (Burma), Lao PDR, Vietnam, Cambodia and Thailand. Main outcome measures Proportion of artemisinin derivatives or mefloquine containing drugs of substandard quality. Results Of the 188 tablet packs purchased which were labelled as ‘artesunate’ 53% did not contain any artesunate. All counterfeit artesunate tablets were labelled as manufactured by ‘Guilin Pharma’, and refinements of the fake blisterpacks made them often hard to distinguish from their genuine counterparts. No other artemisinin derivatives were found to be counterfeited. Of the 44 mefloquine samples, 9% contained <10% of the expected amount of active ingredient. Conclusions An alarmingly high proportion of antimalarial drugs bought in pharmacies and shops in mainland SE Asia are counterfeit, and the problem has increased significantly compared with our previous survey in 1999–2000. This is a serious threat to public health in the region.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Discovery, mechanisms of action and combination therapy of artemisinin
Cui, L., & Su, X.-Z. (2009) · Expert Review of Anti-infective Therapy · doi:10.1586/eri.09.68 · Cited by 371
Ozawa, S., Evans, D. R., Bessias, S., Haynie, D. G., Yemeke, T. T., Laing, S. K., & Herrington, J. E. (2018) · JAMA Network Open · doi:10.1001/jamanetworkopen.2018.1662 · Cited by 356
Substandard and counterfeit medicines: a systematic review of the literature
Almuzaini, T., Choonara, I., & Sammons, H. (2013) · BMJ Open · doi:10.1136/bmjopen-2013-002923 · Cited by 286
Malaria in the Greater Mekong Subregion: heterogeneity and complexity.
Cui, L., Yan, G., Sattabongkot, J., Cao, Y., Chen, B., Chen, X., Fan, Q., Fang, Q., Jongwutiwes, S., Parker, D., et al. (2012) · Acta Tropica · doi:10.1016/j.actatropica.2011.02.016 · Cited by 277
Substandard drugs: a potential crisis for public health
Johnston, A., & Holt, D. W. (2014) · British Journal of Clinical Pharmacology · doi:10.1111/bcp.12298 · Cited by 270
Metadata
- Authors
- Dondorp, A. M., Newton, P. N., Mayxay, M., Van Damme, W., Smithuis, F. M., Yeung, S., Petit, A., Lynam, A. J., Johnson, A., Hien, T. T., McGready, R., Farrar, J. J., Looareesuwan, S., Day, N. P. J., Green, M. D., & White, N. J.
- Venue
- Tropical Medicine & International Health
- Publisher
- Wiley
- Published
- 2004-12
- Volume
- 9
- Issue
- 12
- Pages
- 1241-1246
- ISSN
- 1360-2276 (ISSN-L)
- 1365-3156
- OpenAlex
- W2050832165
- Cited by
- 240
- References
- 0
- FWCI
- 13.72
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Fake antimalarials in Southeast Asia are a major impediment to malaria control: multinational cross‐sectional survey on the prevalence of fake antimalarials. https://app.cochat.ai/papers/10.1111/j.1365-3156.2004.01342.x
- The paper
- Dondorp, A. M., Newton, P. N., Mayxay, M., Van Damme, W., Smithuis, F. M., Yeung, S., Petit, A., Lynam, A. J., Johnson, A., Hien, T. T., McGready, R., Farrar, J. J., Looareesuwan, S., Day, N. P. J., Green, M. D., & White, N. J. (2004). Fake antimalarials in Southeast Asia are a major impediment to malaria control: multinational cross‐sectional survey on the prevalence of fake antimalarials. Tropical Medicine & International Health. https://doi.org/10.1111/j.1365-3156.2004.01342.x
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.