It depends on if it's the same doctor/practice and what the antibiotic is. I tend to go towards consultation/education.for you retail folks, when you get a rx for abx, and pt is on warfarin....what do you do:
1) counsel pt on getting labs checked, signs of bleeding, SE, etc and fill the abx
2) call md to make sure they are ok with interaction and go from there
Almost all abx along with Warfarin will increase INR/bleeding risk, but Bactrim is particularly notorious for this.somebody got levaquin 500 mg, 5 of them, and was on warfarin. i forget the warfarin strength. anyways, the pharmacist said there was an interaction and he told me to look it up. i looked it up, and levaquin increases INR and PT time and all that..
now i didn't go on rotations yet, so i didn't know if that was serious or not. anyways, the pharmacist gave the levaquin and told the patient that it may increase bleeding.
anyways, to the person who said they call the md for every bactrim rx for someone whose on warfarin, why is this? why bactrim specifically. and other abx?