My husband took muconex expectorant/ cough suppressant 12 hour release about 5-6 hours ago. The effect seems to have worn off because he is back to constant coughing. I believe he also took 800mg of ibropbhen around the same time. My question is can he take TussinDM coigh&chest congestion right now? I just want him to get some sleep. He can't take NyQuil because it knocks him out and he has work in the morning