Our diabetic dog normally has Insuvet Lente but on two occasions in the last 
three months the vet has been unable to obtain this insulin and has provided 
prescriptions for Hypurin Bovine Lente. We have managed to obtain Hypurin 
Bovine Lente from supermarket pharmacies (with difficulty since few have any 
stock)but the pharmacists have told us that it is no longer being produced 
and once existing stocks are gone then that's it. Does anyone know what is 
happening here, why there are these supply problems with animal/human Lente 
insulin? I have e-mailed Schering-Plough, who manufacture Insuvet Lente, but 
they don't reply.