Hopefully this may help others.
Just abandoned a work trip to.Europe halfway through as being 27 weeks and battling a rotten cold had utterly wiped me out. Whilst there, I went to a local pharmacy to ask if there was anything I could take for a sore throat while pregnant (my language skills are good enough to convey this without misunderstanding). The pharmacist thought for a bit before disappearing out the back and returning with a throat spray. When I got back to the hotel I checked what was in it. Ingredient number one? Belladonna... I'm no plant expert but even I know that this is deadly nightshade and not good in pregnancy. A quick google confirmed this and I went back to the pharmacy with it. The pharmacists answer was that 'it's natural so it's safe'.
Since returning to.the UK I've found that homeopaths recommend this as a labour aid, definitely to be avoided at 27 weeks.
Just a word of caution to anyone heading beyond the UK to make sure you check carefully anything you might be given!