Is it ok to take a tylenol (acetaminophen) 3 and an extra strength together?

Should be fine : That would be 300 mg Acetaminophen from the tylenol (acetaminophen) #3 and 500 mg (650 mg old) from the es tyl, for a total of 800 to 950 mg of tyl. As long as the tyl #3 was prescribed by your doctor and as long as you don't excess 3, 000 to 4, 000 mg of tylenol (acetaminophen) per day, this should not cause any problems. Must have normal kidney/liver function and avoid alcohol and other liver toxins.

May be too much: The problem is the tylenol (acetaminophen) and the amount that you are adding to the tylenol (acetaminophen) and Codeine . If you do that more than rarely you stand a chance of getting liver disease from the tylenol (acetaminophen) toxicity, if you are going to do it at all, get n acetyl cysteine and take 2 pills per day to protect the liver.