Robatussin maximum strength cough syrup- Is it safe to take?

Kayla
I know regular robatussin cough syrup is safe to take because I called my ob a couple days ago, but what do you think of maximum strength night time robatussin. I have a horrible cough and I'm not sleeping well at night and I need more relief. I bought an humidifier so I'm hoping that helps. Wondering if anyone got the ok from there ob.