Lots of detailed technical information on Ivabradine as a drug itself rather than as treatment for POTS.
Ivabradine Summary | European Medicines Agency (EMA)
Detailed information from the FDA on ivabradine
CORLANOR® (ivabradine) Label - accessdata.fda.gov
Useful technical information about how Ivabradine is absorbed and eliminated from the body is in section 5 of this page. Section 4 has lots of information on side effects, interactions and contraindications.
Drugs.com - Ivabradine Uses, Side Effects & Warnings
Helpful UK guidance on medicines for POTS including Ivabradine
PoTS UK guide to medications
Some helpful information in the resources section of his website from Dr Sanjay Gupta (a POTS specialist and cardiologist in York, UK). He can also be seen privately at yorkcardiology.co.uk
Resources from Dr Sanjay Gupta | PoTS Specialist
Helpful summary in more plain english language on ivabradine use in POTS
Ivabradine for Postural Orthostatic Tachycardia Syndrome (POTS) - Health Rising