Re: From 50mcg Fentanyl patches to Opana ER 40mg
You won't know until you try. Conversion is really an educated guess. From one chart I looked at those doses are considered about equal. Its common for doctors to start at a lower conversion as to not risk overdose, so its definitely possible to have some increased pain or withdrawal at first until they get the dose up.
Do they have you scheduled for a follow up soon or give you extra breakthrough medication? My doctor has me come in after 1-2 weeks when we do a big med change (instead of 4 weeks).
Definitely call if you are miserable, but try to give it at least a couple days, and recognize that it may take some time for it to kick in. Also, be sure to get a schedule from your doctor and/or pharmacist of when you start taking the Opana ER pills after taking off the patch (a period of time should go by between, as medication form the patch stays in your system).
As for the constipation, what have you tried? Miralax seems to be the most popular. There is no max dose and it can take a week or two to really get going in your system if you are very backed up. I know some folks try things but aren't told how long to try them, or that you can take a higher dose. Some need a combo of a stool softeners and laxative. Some info says for opiate induced constipation you should avoid fiber supplements. Shoreline just posted a recipe for "Yakima Fruit Paste" and a recommendation for "Cascara Segrada" in another thread.
Yes some meds may cause less constipation, similar to varying side effects or relief. There will be mixed info on every med. Some folks are very anxious about a switch but then find it much better. Worst case its a bad med for you or you need a dose increase...it may happen. But we don't know what will be the best for us until we try it out. Best wishes.
constant headache since 2006