Heparin
INR
Methotrexate
FBC, LFTs, U&Es
Theophylline
Theophylline level
Valproate
Serum Valproic acid level, complete blood count, Hepatic function tests
Procainimide
ECG Monitoring (QRS Complex, QT interva) and blood pressure
Cyclosporine
Blood cyclosporine concentration + U&E, LFTs, FBC