Darvocet was the first Rx painkiller I had much experience with. Prior to my back surgery, back when I was in high school, I was on Darvocet (and then Darvon), and was prescribed a total of about 800mg per day. Since those days, I've been variously addicted to oxycodone, heroin, and methadone. Of all of these, Darvocet is by far the mildest in terms of withdrawal symptoms, particularly at the dosage you're talking about. You may feel a little uncomfortable if you try to stop, but it is highly unlikely that you'll experience anything beyond slight irritability, some rebound pain, and minor drug craving.
What is your pain situation? If you have some chronic pain issues, then a few hundred milligrams of Darvocet per day is probably reasonable.
If I was you. I would be more scared of where your heading. 1 is 2, 2is 4 etc. They will ruin your whole life. Not in one day, but it will progressively get worse and worse. That is something that should scare you more than 4-5 bad days, and several more weeks of getting clean! You ask if it is safe to take 1 or 2/day. Haven't you just shown that you are not able to do this?
When you are ready to get off of them and your mind is made up. You can do this. This forum has helped hundreds if not thousands to get and stay clean. You have to be the one to decide. We are here to help,support and get you through this.
because you have been taking them so long yes you will have some type off withdrwals from them if you stop taking them..but you need to make an effort to stop.