- (Nils Löfgren and Egner) 1960 (Wielding)
Primacaine procaine Novocain,
borocaine (procaine borate),
ethocaine 1904 (Alfred Einhorn) 1905 (Heinrich Braun)...
- Propoxycaine/Ravocaine Pravocaine, Ranocaine,
Blockain Procaine/Novocaine
Borocaine (Procaine Borate),
Ethocaine Proparacaine/Alcaine
Alcaine Quinisocaine...