Tag: pharmacokinetics
Why vitamin D prescriptions favour weekly boluses over daily doses — and what the evidence says
Vitamin D prescriptions typically specify 50,000 IU weekly, a pattern driven by patient adherence rather than pharmacological advantage. A randomised…
Why the ‘2pm coffee cutoff’ is a myth: genetics and lifestyle create a 15-fold range in caffeine metabolism
A new systematic review reveals that caffeine half-life varies 15- to 40-fold across healthy adults, making the popular '2pm cutoff'…
Nasal spray reaches women’s brains differently across menstrual cycle, new study reveals
Research shows that nasal sprays penetrate women's brains at different rates depending on their menstrual cycle phase, revealing how standard…
Why the ‘2pm Coffee Rule’ Fails: Metabolism Varies 5-Fold Between Individuals
New research reveals caffeine elimination varies 5-fold between individuals, making the popular '2pm coffee rule' ineffective for many. Genetic and…
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