How long does tylenol cold stay in your system?

How long a drug stays in your system is a very difficult question to answer. It is dependant on many factors eg.
1. How much and how often you have taken the drug.
2. Your metabolic rate – slower metabolisms will increase time drug remains in your system
3. Your age and health – older age and poor health generally increases time drug stays in your system
4. Body mass – generally the bigger you are the longer a drug will remain in your system.
Tylenol Cold
contains Acetaminophen/Chlorpheniramine/Dextromethorphan/Pseudoephedrine.

Roughly, allow 4 days.

These sites may be useful.
www.uatests.com
www.erowid.org