Hi I don't know if this is the right place for this question, so apologies if not. Has anyone had experience with Lactulose? And have you ever had a brand where the Lactulose is extremely bitter and a thin clear liquid? I believe that what I was given in hospital was not Lactulose. I administer this on every shift at work. I have had it at home. And I have been having it twice a day in hospital for the last 15 days. Lactulose is extremely sweet, slightly viscous,pale yellow medicine. What I squirted in to my mouth without a second thought this morning - there are a few drops left in the syringe which I have kept safe - was a thin clear liquid, and extremely extremely bitter. I have never tasted anything like it. It hit the back of my throat and hours later could still feel it. The nurses said it was probably a different bottle of Lactulose I was given medication from. I phoned the hospital pharmacy - name withheld - and asked if they use various brands of Lactulose, what brand is used. The person confirmed they use one manufacturer of Lactulose on the wards - Almus.  This evening, the nurse in charge has been in and said he spoke with pharmacy and the same, only one type of Lactulose used on the wards. So I replied - what I was given this morning is exactly what I have been given twice daily for the last two weeks then? There are no different flavours around?  He said it is the same as I have been having.  I replied - well it definitely was not Lactulose as I have never had that medicine before. They seem to be ignoring this issue. I have a drop in the syringe still. I have had tachycardia episodes today - also have had ventricular tachycardia due to prolonged QT interval which is why I ended up in hospital (I had breast cancer which is why I'm signed up to the forum, also may need to have colonoscopy due to constipation now). I don't know what to do? I want to know what drug I was given this morning, especially with a history of  prolonged QT.