NovaMeds
Evidence-based guides to medicines, active ingredients and emerging research.
Orlistat prevents dietary fat absorption in the gut, whereas GLP-1 receptor agonists act centrally to suppress appetite. Here is how their mechanisms, efficacy, tolerability and clinical roles compare.
Sildenafil and tadalafil are the two most widely prescribed PDE5 inhibitors for erectile dysfunction. Here is how their pharmacokinetics, duration of action, meal interactions and daily dosing options compare.
Tretinoin is pure all-trans retinoic acid; retinol must undergo a two-step intracellular conversion. We compare their molecular pharmacology, clinical anti-ageing efficacy, irritation management and prescribing status.
Lisdexamfetamine is a molecular prodrug requiring enzymatic cleavage in red blood cells to yield active d-amphetamine. We examine its 12-hour smooth plasma curve, ADHD and binge-eating efficacy and reduced abuse liability.
Ozempic and Wegovy both contain semaglutide. Learn how their authorized uses, doses and formulations differ in the UK and US, and what the evidence shows.
Mounjaro and Zepbound both contain tirzepatide. Learn why they carry different names and indications in the US, and why only Mounjaro is authorized in the UK.
Wegovy (semaglutide) and Saxenda (liraglutide) compared: dosing, authorized uses in the UK and US, and the STEP 8 head-to-head trial.
Semaglutide can be taken as a daily tablet or a weekly injection. Learn how absorption, doses, rules for taking it and authorized uses differ in the UK and US.
Finasteride and minoxidil treat pattern hair loss in different ways. Compare mechanisms, evidence, oral and topical forms, UK and US status and safety.
Compare semaglutide and tirzepatide, including SURMOUNT-5 results, weight-loss outcomes, mechanisms, safety and oral formulations.
An evidence-based comparison of finasteride and dutasteride for hair loss and prostate enlargement, covering DHT, clinical trials, safety and PSA monitoring.