I was prescribed 7.5mg endocet and it made me incredibly tired but did not do much to help the pain. My doctor upped my prescription to 10mg but gave me percocet instead. I have heard there is really no difference between the two but percocet doesn't make me tired which is strange because its a higher dose. This is my first time taking endocet but I have had percocets before. I was just wondering if there is a reason for this.