On-call docs who get phone calls from patients they don't know asking for a new rx for narcotic pain medication have a very specific reaction. NO.
That's because there are a lot of people out there who are trying to trick docs into giving them meds either because they are addicted (as opposed to dependent) or they are going to sell them. The on-call doc doesn't have any idea who you are and for all he knows you already got a rx for those meds from your regular doc and 2 or 3 others besides. Sad but true.
So I wouldn't be too hard on the on-call doc.
All these meds are opiates of differing strengths. So the chances of you getting constipation would seem to be pretty good on the higher dose narcotics like Vicodin and Lortab. Since your regular GI feels this is a dangerous situation for you I would say you probably are going to have to use some temporary measures until you can get your regular doc to see you.
Heating pad for the tummy cramps? Does rub on creams do anything for your arthritis? Gentle stretching several times a day helps my osteoarthritis some. So does distraction, stress reduction, meditation and just plain seeing a funny movie.
I recommend the movie "Red" - my sister who is in terrible pain all the time despite high dose Fentanyl patches and oral morphine laughed her socks off when we saw Red together.
You're right to be leery of taking too much Tylenol - good call.
I'm sorry you're hurting and hope things get better soon.
As for the FDA's ruling on Darvocet, in 2/2009 (yes 2009) they first recommended that the drug should be pulled due to serious concerns about
heart problems. There were almost 100 deaths from this in 2006 and 2007. They allowed the drug to stay on the market while a new study was done which documented dangerous heart arrythmia's at a level high enough for the FDA to deem the drug unsafe. Darvon/Darvocet is already banned in several European countries for this reason.
If you had been getting your pain meds through a pain management team, I'm guessing you would not be facing this crisis. They would have been tuned in to the fact that you were on this med and that there was a very high likelihood it was going to be pulled.
So, one more reason for those in chronic pain to be working with docs who specialize in that area - if it's available of course and you can afford it.