Too Much and Too Little Medicine Are Two Sides of the Same Coin
Eugene Tan

Abstract
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TopicsHealthcare cost, quality, practices · Pharmaceutical industry and healthcare
Dear Editor,
The Choosing Wisely campaign highlights the harm of ‘Too Much Medicine’—overdiagnosis and unnecessary interventions. While much has been written about this topic, less attention has been paid to its counterpart—‘Too Little Medicine’. Two examples from the UK exemplify this; where effective treatments are restricted leading to undertreatment.
Isotretinoin has been linked to psychiatric and sexual side effects, resulting in usage restrictions [1]. Topical steroid withdrawal (TSW) is recognised as a distinct entity linked to prolonged use of topical steroids, prompting mandatory potency labelling and warnings [2]. Our college has issued statements contradicting these views. High‐quality studies do not support a causal link between isotretinoin and psychiatric or sexual dysfunction [3]. Similarly, topical steroids are safe and effective, but ‘steroid phobia’ triggers eczema flares in children [4]. These conflicting conclusions cannot both be correct.
Here, the COVID‐19 pandemic offers valuable insights. Policy responses varied widely—from strict lockdowns to minimal ones and from extensive use of drugs to minimal use of antivirals. What lessons can we draw in hindsight?
First, adhering to evidence‐based medicine (EBM) increases the probability of getting things right [5]. Numerous studies confirmed that even during a pandemic, rigorous clinical trials—including randomised controlled trials—are not only feasible but also essential [6]. Quality matters! More information does not mean more truth—of the quarter of a million articles on COVID‐19, many were of poor quality, and over 500 have been retracted [7].
Second, the GRADE framework ensures decisions consider benefits, harms, patient values, costs and feasibility [5]. For instance, mandated school closures affected 1.5 billion children globally, yet may not have been necessary to control viral spread [8]. Little attention was given to the negative effects—social isolation, mental health issues and lost education—which could have generational consequences [8].
It is concerning that policy makers did not grade the quality of evidence nor apply GRADE when evaluating isotretinoin or TSW [1, 2]. A myopic view of risk overlooks the harms of withholding effective treatment.
At best, isotretinoin restrictions will result in fewer patients receiving effective treatment. At worst, patients may suffer irreversible scarring and serious psychiatric illness, including depression and suicide. Similarly, the cautionary labelling of topical steroids may not improve eczema treatment but at worst, it may increase the risk of misdiagnosis. TSW is not a formally accepted diagnosis, with symptoms that overlap with many conditions. In the worst‐case scenario, misdiagnosing cutaneous T‐cell lymphoma—that can resemble eczema and is similarly unresponsive to topical steroids—for TSW could have serious, potentially life‐threatening consequences.
How can we mitigate this? We must demand that policymakers follow the framework of EBM and GRADE when making any public health decision [5]. Absolute knowledge is epistemologically unattainable, and mistakes are inevitable. However, by adhering to GRADE—systematically assessing the quality of evidence, weighing the relative importance of outcomes, balancing benefits against risks and integrating patient values, preferences and resource considerations—we can greatly reduce both the likelihood of errors and the impact of their consequences [5]. This systematic approach was absent in many public policies during the pandemic, raising concern that similar missteps may occur in the context of isotretinoin and topical steroids.
It is unreasonable to expect policymakers to have training in EBM, but not unreasonable to expect them to follow established frameworks, regardless of political pressure [9]. If EBM lies outside their expertise, they should engage with individuals who are trained in it. This framework ensures transparency, reduces confusion and improves public trust.
Too Much Medicine and Too Little Medicine are two sides of the same coin—both reflect a disregard for EBM. No society in history has ever suffered because its people demanded too much high‐quality evidence.
Disclosure
Patient Consent for Publication: Not applicable.
Use of Artificial Intelligence (AI) Tools: The author declares that no generative AI or AI‐assisted technologies were used in the writing of this manuscript.
Ethics Statement
The author has nothing to report.
Conflicts of Interest
The author declares no conflicts of interest.
The reference list from the paper itself. Each links out to its DOI / PubMed record.
- 1Commission on Human Medicines (CHM) , “Report of the Commission on Human Medicines Isotretinoin Expert Working Group,” (2023), https://www.gov.uk/government/publications/report‐of‐the‐commission‐on‐human‐medicines‐isotretinoin‐expert‐working‐group.
- 2Medicines & Healthcare products Regulatory Agency (MHRA) , “Topical Steroid Withdrawal Reactions: A Review of the Evidence MHRA Public Assessment Report September 2021,” (2021), https://assets.publishing.service.gov.uk/media/61559 b 16d 3bf 7f 5601 cf 2eef/Topical_Steroid_Withdrawal_reactions_PAR_V 7_PDF_30.09.21.pdf.
- 3The Australasian College of Dermatologists , “Position Statement ‐ Isotretinoin for the Treatment of Acne,” (2024), https://www.dermcoll.edu.au/wp‐content/uploads/2024/11/Isotretinoin‐Position‐Statement_202410.pdf.
- 4The Australasian College of Dermatologists , “Consensus Statement ‐ Topical Corticosteroids in Paediatric Eczema,” (2022), https://www.dermcoll.edu.au/wp‐content/uploads/2022/09/ACD‐Consensus‐Statement‐Topical‐Corticosteroids‐September‐2022‐.pdf.
- 5B. Djulbegovic and G. Guyatt , “Evidence‐Based Medicine in Times of Crisis,” Journal of Clinical Epidemiology 126 (2020): 164–166, 10.1016/j.jclinepi.2020.07.002.32659364 PMC 7348606 · doi ↗ · pubmed ↗
- 6J. J. H. Park , R. Mogg , G. E. Smith , et al., “How COVID‐19 Has Fundamentally Changed Clinical Research in Global Health,” Lancet Global Health 9 (2021): e 711–e 720, 10.1016/S 2214-109X(20)30542-8.33865476 PMC 8049590 · doi ↗ · pubmed ↗
- 7Retraction Watch , “Retracted Coronavirus (COVID‐19) Papers,” (2025), https://retractionwatch.com/retracted‐coronavirus‐covid‐19‐papers/.
- 8A. Munro , D. Buonsenso , S. González‐Dambrauskas , et al., “In‐Person Schooling Is Essential Even During Periods of High Transmission of COVID‐19,” BMJ Evidence‐Based Medicine 28 (2023): 175–179, 10.1136/bmjebm-2023-112277.PMC 1031407737068921 · doi ↗ · pubmed ↗
