My dr gave me script for tylenol (acetaminophen) 3 every 4 hours.& phenergan 25 mg for knee injury. can i take this together. i have asthma and take proair hfa to. ?

Drop the phenergan (promethazine): Better to drop the phenergan, would interact with both pro-air and tylenol (acetaminophen) #3, unless you're really nauseated, ask your doctor for a replacement, I trust that your doctor wouldn't mind if you ask. Take the tylenol (acetaminophen)#3 only as needed and as prescribed, good that you inquired, always exercise caution with multiple medications, wish you wellness