Knockoff Mucinex D safe or not?

Kelsey • Little man due May 2019 💙

I’m 25w6d pregnant and have the worst congestion and a really sore throat. I called my doc but they haven’t called back yet.

It’s the Walgreens version of Mucinex D and it’s the only thing in the house... I’ve tried to look it up and have been getting mixed answers.