A friend of mine is 37 weeks pregnant and asked me if she can take telfast for her cold. I told her it would be best not to, basically she can take paracetemol and thats about it.
She went to the chemist and he said as she is 'term' its ok for her to take any medication she wants! So he gave her cold and flu tablets. Does this sound right to you?
There is no evidence that Telfast causes any damage to a developing baby, however it has not been proved that they are fully safe either and so there is usually a warning on the package.

I think this comes to the Mum balancing her beliefs of risks and benefits. I don't think i would medicate during pregnancy just for a cold (cos there are other things you can do, and it's not going to last), but for other people it might be really tough to have a cold.