Robitussin okay to take?

Alexandria

I’ve had a very bad cold the last week and my doctor gave me a list of stuff to take but robitussin was not on there. But my best friend who also is pregnant has taken it and said it is safe and she took the exact same stuff. I’m sixteeen weeks pregnant and I just wanna get over this cold but I’m extremely scared to take this. So I just want some reassurance this is safe to take.