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New study reveals best dosage for ADHD medications

A new study has identified the most effective dosages for five commonly used ADHD medications using data from thousands of participants. The research, published in The Lancet Psychiatry, provides a comprehensive view of dosage effects and developed an online tool to help clinicians and patients choose the right dosage.

SourceUniversity of Southampton·JournalThe Lancet Psychiatry·TypeMeta-analysis·DateMay 14, 2026

Tranexamic acid prevents severe bleeding in caesarean births

A new trial from China finds that giving tranexamic acid to women with placenta praevia undergoing caesarean birth leads to a significant reduction in severe bleeding after delivery. The treatment also showed no evidence of an increase in serious adverse events.

SourceBMJ Group·JournalThe BMJ·TypeRandomized controlled/clinical trial·DateMay 13, 2026

EASO issues new update of its ‘living’ guidance for appropriate use of pharmacotherapy in obesity management

The updated algorithm incorporates evidence from multiple randomised clinical trials, highlighting the strength of tirzepatide for weight loss and semaglutide for liver disease management. The new guidance also recommends semaglutide for metabolic dysfunction-associated steatohepatitis remission.

Diabetes, weight-loss drugs not a perfect fit?

A new international study found that genetic variations in the PAM gene can reduce the effectiveness of GLP-1 receptor medications, such as Ozempic. Researchers discovered that 44% of people with these genetic variants experienced reduced glucose lowering properties, and only 11% achieved recommended glucose levels.

SourceAdelaide University·JournalGenome Medicine·TypeObservational study·DateMay 10, 2026

Hormone health climbs the policy agenda as endocrine leaders meet for European Society of Endocrinology’s first Summit of the Presidents

The summit brought together endocrine leaders to identify opportunities to work closely together on increasing the visibility of endocrine health in policy decisions. Early findings from a workforce survey revealed challenges including long patient waiting times and retention concerns among early-career clinicians.

Chinese Medical Journal article review explores organoid models in investigational new drug regulation and development

Researchers review organoid-related regulations and progress in IND approval, highlighting the prospects and limitations of organoid models. Organoids are poised to reshape drug research and development with their high clinical relevance, shorter experimental cycles, and lower costs.

SourceChinese Medical Journals Publishing House Co., Ltd.·JournalChinese Medical Journal·TypeLiterature review·DateMay 8, 2026

UH professor urges better prevention and care of liver disease to reduce burden

Chronic liver disease in the US costs $41.57 billion, with prescription medication expenditures accounting for nearly half of all-cause healthcare expenditures. Poor adherence to antiviral medications is a key factor in preventing disease progression and treatment, with high out-of-pocket costs increasing non-adherence risk.

SourceUniversity of Houston·JournalExpert Review of Pharmacoeconomics & Outcomes Research·DateApr 28, 2026

Use of psychotropics increases already in the early stages of Parkinson’s disease

A recent study from the University of Eastern Finland found that people with Parkinson's disease are using psychotropics more frequently than controls, even before diagnosis. The use of psychotropic medications increases as the disease progresses, reflecting emerging non-motor symptoms and worsening disease progression.

SourceUniversity of Eastern Finland·JournalBritish Journal of Clinical Pharmacology·DateApr 21, 2026

Opioids and other drugs accumulating in freshwater fish

A new study reveals that freshwater fish are accumulating antidepressants, opioids, and other drugs of abuse in their bodies, which can alter their behavior, development, and reproduction. The research uses a novel analytical method to detect these substances in small fish living in rivers receiving urban wastewater.

SourceUniversity of Waterloo·JournalEnvironmental Pollution·TypeExperimental study·DateApr 16, 2026

Risk of drug poisoning if gabapentinoid painkillers taken with other medications

A new study by University College London found that gabapentinoids, prescribed for chronic pain, double the risk of hospitalization for drug poisoning when combined with benzodiazepines or opioids. The risk persists even after starting gabapentinoid treatment, suggesting they may not be an effective solution to reduce poisoning risks.

SourceUniversity College London·JournalPLOS Medicine·TypeObservational study·DateApr 16, 2026

Anti-amyloid Alzheimer’s drugs show no clinically meaningful effect

A new Cochrane review of 17 clinical trials found that anti-amyloid Alzheimer's drugs have no significant impact on cognitive decline or dementia severity, but may increase the risk of brain swelling and bleeding. The evidence suggests that these drugs are unlikely to provide clear benefit to patients.

SourceCochrane·JournalCochrane Database of Systematic Reviews·TypeSystematic review·DateApr 15, 2026

New drug combination doubles down on Alzheimer's treatments

Researchers at the University of Waterloo have discovered a safer and more effective way to treat Alzheimer's disease by combining anti-amyloid antibodies with molecules found in grapes, berries, peanuts, and turmeric. This combination approach neutralizes amyloid protein clumping in the brain, leading to better outcomes.

SourceUniversity of Waterloo·JournalACS Chemical Neuroscience·TypeExperimental study·DateApr 9, 2026

US trends in long-term opioid therapy

Long-term opioid therapy prescription rates declined in the US from 2015 to 2023, despite a growing population of older adults receiving these treatments. Approximately 4-5 million patients were prescribed long-term opioids in 2023, with Medicare covering a larger proportion, raising concerns about safety.

SourceJAMA Network·JournalJAMA·DateApr 8, 2026

Study: Long-term opioid prescribing fell, but millions still receive extended opioid therapy

A recent study found a decline in long-term opioid prescribing in the US between 2015 and 2023, with a 24.3% decrease in patients receiving extended therapy. However, approximately 4.2 million US patients still received opioids for 90 days or longer in 2023, indicating the need for improved treatment models for chronic pain management.

Mirtazapine for methamphetamine use disorder

In this randomized clinical trial, mirtazapine effectively reduced methamphetamine use in adults with methamphetamine use disorder. The study's findings have important implications for the treatment of this condition, which currently lacks approved pharmacotherapies.

SourceJAMA Network·JournalJAMA Psychiatry·DateApr 1, 2026

Bleeding events largely outnumber thromboembolic events in patients with cancer during the last phase of life, most patients continue antithrombotic therapy

A study found that cancer patients during the last phase of life experienced more bleeding events than thromboembolic events. Most patients continued their antithrombotic therapy despite increased bleeding risk, with over 28% experiencing at least one bleeding episode.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateMar 23, 2026

New biochar-based technology boosts antibiotic removal from water using low-energy ultrasound

Researchers developed a novel composite material that combines biochar, carbon nanotubes, and iron carbide, significantly accelerating the breakdown of antibiotics in water. The system achieved up to 15 times higher removal rates compared to conventional materials, while requiring substantially less energy.

SourceBiochar Editorial Office, Shenyang Agricultural University·JournalBiochar·TypeExperimental study·DateMar 20, 2026

NRG Oncology/Alliance trial finds immunotherapy did not improve survival when added to chemoradiotherapy for small cell lung cancer

The NRG-LU005 trial found that immunotherapy atezolizumab did not improve survival for patients with limited-stage small cell lung cancer when added to chemoradiation. Twice-daily radiation therapy, however, was associated with improved survival in this population.

SourceAlliance for Clinical Trials in Oncology·JournalJournal of Clinical Oncology·TypeRandomized controlled/clinical trial·DateMar 12, 2026