I took it and I freaked out because my safe drug list said not to take the multi-symptom forms of these medicines. But I called my doctor and told her that I took it and I was freaking and so she...
There shouldn't be a problem. Read on both packets to see if any ingredients can effect the other in a bad way. Also, you should check with your doctor.
It is technically safe, however there is pain releiving medication in Tylenol Cold already. If the pain relief from Tylenol Cold is insufficient you could take ibuprofen with it.