We have Irreversible inhibitors and we have Reversible inhibitors. So let's begin by briefly focusing on Irreversible inhibitors. So in Irreversible inhibition, that particular inhibitor basically binds onto the enzyme very tightly, very strongly. It binds so strongly that it's very unlikely that it's ever going to actually dissociate from that enzyme. So if we take a look in the following chemical reaction, we have the enzyme and our Irreversible inhibitor. And so because this is attracted very strongly to that enzyme, it will bind onto that enzyme, forming this product, this enzyme inhibitor complex.