I had an infusion on 1 March 2023 in the UK....and immediately had awful muscle pain and stomach issues - including vomiting, nausea, feeling of grit rubbing my stomach wall, severe stomach distension and pain on eating, loss of appetite, change in taste, alternating constipation and diarrhoea. I am now underweight, as I lost over half a stone - and was slightly underweight to begin with.
After a month the consultant allowed a small steroid jab to try to settle the muscle pain which had ramped up hugely. It had some success. The consultant seemed to ignore the stomach issues, although the ROS did say that some people do have issues (very helpful folk). Finally, after being thrown back on the GP (which I didn't take up immediately, due to not thinking a GP could help where a consultant couldn't), he amazingly did believe me, tests ensued - but as none of them looked inside the stomach, all came back normal. 8.5 long, painful months after the infusion I was allowed a gastroscopy which showed a patchy stomach lining and mild gastritis....so what level of stomach damage did I have immediately after the infusion?! I am still trying to re-build my stomach now, 10 months on.
VERY BIG NOTE - Now, before you all take fright and avoid Zoledronate like the plague...I knew I had a really 'dodgy' stomach and could not tolerate some drugs and I told all medics talking to me about osteoporosis about this, proven facts which were fully ignored. So if you have had no previous tummy issues, like probably 99.9% of the population with Osteoporosis, you will be just fine on the drug!! have it. It will help your bones. Lucky, lucky you! Even folk who cannot tolerate Alendronic Acid will benefit from this drug.
The Patient Info Leaflet, which I asked for from the manufacturer, sadly post infusion, shows that stomach issues are a common side effect - but they don't indicate for how long and in what intensity it can be. So if you have any concerns, use this leaflet to talk over you concerns with your medic before treatment. I didn't find any other details like this prior to the infusion - and the British National Formulary sheet which did indicate issues, was pooh-poohed by the consultant.
As I have not, so far, been able to find anyone else in my situation, I would be really interested to hear of anyone who has had similar long-term issues (I suspect and hope that we will be a very small band indeed...).