1. 21CFR320.33.
2. American Association of Clinical Endocrinologists (AACE), The Endocrine Society (TES), and American Thyroid Association (ATA). Joint position statement on the use and interchangeability of thyroxine products [Online].
https://www.aace.com/files/position-statements/aace-tes-ata-thyroxineproducts.pdf
. Accessed
3. Digoxin [Online].
http://www.clinicalpharmacology-ip.com/Forms/Monograph/monograph.aspx?cpnum=190&sec=monmp
. Accessed
4. Lithium [Online].
http://www.clinicalpharmacology-ip.com/Forms/Monograph/monograph.aspx?cpnum=351&sec=monmp
. Accessed
5. Phenytoin [Online].
http://www.clinicalpharmacology-ip.com/Forms/drugoptions.aspx?cpnum=484&n=Phenytoin
. Accessed