Huge increase in prescription medicines (with possible potency with Vitamin D) – 2015

Trends and interaction of polypharmacy and potentially inappropriate prescribing in primary care over 15 years in Ireland: a repeated cross-sectional study

BMJ Open 2015;5:e008656. doi:10.1136/bmjopen-2015-008656

📄 Download the PDF from VitaminDWiki

Drugs prescribed

See also VitaminDWiki

1. Vitamin D can increase the potency of a drug

   • Which might be fatal

   • Chemotherapy and vitamin D - many studies

   • Some drugs change potency when Vitamin D is increased (increase in a hormone)

2. Vitamin D can decrease the potency of a drug

   • Which might be fatal

3. A drug can decrease Vitamin D (consumes it or blocks it)

   • More vitamin D needed if person is taking Glucocorticoids – June 2015

   • Some anticonvulsant drugs significantly reduce vitamin D levels – many studies

4. A drug can increase Vitamin D

   • Example - some contraceptives