Hi, here's some info from a patients leaflet by the manufacturer. If you weren't given it when you were put onto the medication then it may be of some use.
https://www.diabetesmatters.co.uk/sites/default/files/102036_LYXUMIA_A5_24pp_BOOKLET_v02_iPad.pdf
The most common side effects of Lyxumia are nausea
(feeling sick), vomiting (being sick) and diarrhoea.
These are usually mild and will disappear over time.
There are a number of things you can do if you are
feeling sick.
• Eat small amounts regularly instead of large meals.
Do not stop eating though.
• Eat simple food such as dry toast, plain biscuits,
crackers or baked potatoes, and sip cool (not cold)
carbonated drinks.
• Try peppermint, camomile or ginger tea, as they may
help to calm the stomach.
• Drink plenty of fluids.
• Keep a note of foods and smells that make you feel
worse, and avoid them if you can.
• There may be remedies available to help you if you
are feeling sick in the first week or two. Ask your
doctor or nurse if you think this would help you
(personally, i'd make sure that any carbonated drink was sugar free and be careful about the toast etc since they may be rather counterproductive)