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This study found that codeine incorporation in guinea pig hair varied with pigmentation and was highest in black hair, suggesting the role of eumelanins in drug binding.

In this study, bleaching and perming were found to significantly reduce opiate concentrations in both spiked and naturally opiate-positive human hair samples.

This in vitro study found that opiate diffusion was more pronounced in damaged hair fibers than in undamaged ones, with high opiate concentrations detected in fiber centerpieces.

In this study, conducted during the 22nd FIFA World Cup in Qatar, doping control analysis of 1612 samples showed negative results for prohibited substances, except for two instances each of codeine and carboxy finasteride.

This case report describes a Labrador retriever with arthrosis whose symptoms improved after sequential treatments including corticosteroids and tetracycline, leading to the resolution of dermatitis and nodular tumors.

Human enzymes can detoxify harmful substances but might also increase their cancer risk.

Hair testing is a reliable method for detecting workplace drug use when done with proper sample preparation and confirmation.

This review elaborates on the skin side effects of chemotherapy and emphasizes identifying and managing both common and life-threatening skin reactions, without presenting new clinical findings.

This article discusses the long-standing use and safety of opioids in anaesthesia, noting that respiratory depression is a manageable side effect due to the availability of opioid antagonists.

This article reviews the scientific exploration of Ayurvedic medicinal plants and discusses their modern applications, such as a drug developed from Commiphora wightti for lipid disorders, without reporting new clinical findings.

This study suggests that while hair analysis using GC-MS is a sensitive method for detecting cocaine ingestion, it may not reliably indicate the amount, timing, or duration of drug use due to interindividual variability and multiple incorporation mechanisms.

This article reviews hair analysis for drug detection and its applications in various fields, but reports no new research findings, emphasizing the need to consider the method's complexities and potential pitfalls.

This review examines the main absorption sites and influencing factors for orally administered drugs, highlighting variables such as solubility and gastrointestinal conditions that affect drug absorption in the small intestine and the development of effective drug delivery systems.

This review outlines the steps of contemporary hair transplantation surgery, including the roles of medications and nonsurgical options, but it reports no new clinical findings.

This study developed and validated a high-resolution mass spectrometry method to screen for prohibited substances and analyze six endogenous steroids in urine according to World Antidoping Agency requirements, demonstrating its effectiveness for antidoping analysis.

This review discusses pharmacologic treatment options for muscle-related pain conditions and notes that there is strong evidence for the efficacy of tricyclic antidepressants and muscle relaxants in specific myofascial pain syndromes, but not universally.

This article discusses how drug molecules integrate into hair fibers, focusing on biological transport mechanisms and physicochemical factors, but reports no new experimental findings.

This review develops expert-guided recommendations for hidradenitis suppurativa management, highlighting evidence for the effectiveness of antibacterial and anti-tumor necrosis factor therapies, but reports no new clinical trial results.

This review summarizes various drug treatments for hidradenitis suppurativa, noting their effectiveness, side effects, and high recurrence rates, but reports no new clinical findings.

This article reviews advanced dermabrasion techniques for acne scars and skin lesions, detailing patient selection and procedural steps to enhance therapeutic outcomes and avoid pitfalls, but reports no new findings.

In this study of men with androgenetic alopecia, daily finasteride 1 mg alongside hair transplant improved scalp hair density and growth of nontransplanted hair compared to placebo over 48 weeks.

In this NIH study, female donor to male recipient sex mismatch was significantly associated with the development of vitiligo and/or alopecia areata in patients with chronic graft-vs-host disease.

This study found that finasteride 1 mg daily, taken before and after hair transplant surgery, significantly improved scalp hair coverage and density in men with androgenetic alopecia compared to placebo.

This review discusses the topical use of systemic drugs for cutaneous disorders and reports a lack of strong evidence from randomized controlled trials, highlighting the need for larger comparative effectiveness studies.

This review discusses the adverse skin effects of EGFR inhibitors used in cancer treatment, exploring their mechanisms and offering strategies for prevention and management, but reports no new experimental findings.

This study reports that hair analysis could potentially monitor metformin use in diabetic patients, suggesting a possible correlation between daily dose and concentration in dark hair but not in light hair.

This review discusses the analysis of pharmaceutical relics from prehistoric times to the twentieth century and emphasizes the need for a multifaceted approach, but it presents no new experimental results.

This study developed a high performance capillary electrophoresis method, validated for both legal and illicit minoxidil-based products, to confirm minoxidil's presence alongside known impurities.

This report describes three cases of postoperative necrosis following bilateral lateral reduction surgery, leading the author to discontinue the procedure and advise caution to others.

This study analyzed CADR reports in Singapore, finding nonsteroidal anti-inflammatory drugs, antibiotics, and iohexol frequently associated with serious skin reactions like rash and angioedema, with trends varying by demographics.