Is minocycline causing my dry skin?

So I have mild bacne, and I went to the dermatologist, who prescribed me minocycline (oral pill), benzoyl peroxide wash, and clindamycin phosphate. I don't seem to be breaking out on my back anymore, but now the skin on my face is really dry, mostly on my cheeks and around the skin above my mouth. So, I'm just wondering if minocycline is causing this, because generally I have mild dry skin, but now the lotions I've been using forever are NOT working anymore. It's really bugging me, help?