I tried Prilligy a couple of times but it didnt do anything other than make me slightley nauseous
I have used Tramodol in the past but I found it would also cause me to be nauseous. Tramodol worked for me but it would mess up my ejaculations, they would be feeble spurts and also continue to leak out afterwards for five minutes or so.
You can get emla cream over the counter and if you get the application right its perfect for a prolonged and enjoyable session, however if you get it wrong you will probaly be circa £100 down without a happy ending.
Whatever you do to stop what comes naturaly I think it will lessen the intensity, however, On some occasions I like to take in and enjoy all aspects of a punt so delaying the (hopefully) inevitable is a reasonable trade-off.