Hello, I have a 93 lb 15 year old, no hx of asthma that was dealing with what I thought was allergies earlier today. About 6 hr ago, I gave him 1 claritin tab. Tonight he is not feeling well at all and realizing that this is a major cold. Can I give him the nighttime soft gels tab. Each one is 325 mg tylenol, dextromethorphan HBr 15 mg, and Doxylamine succinate 6.25 mg. If I am able to give this to him, do I give him only one soft gel or the adult dose of two soft gels?