Is it bad to take 3 Tylenol pills?

The maximum dose of acetaminophen for adults is 1000mg at a time, and 4000mg per day. Tylenol 3 contains 300mg of acetaminophen. That makes up to 13 Tylenol 3's during the day. But Tylenol 3 contains 30mg of codeine, and they do not recommend to take more than 240mg of codeine daily. That makes 8 Tylenol 3's all in all at maximum. If you need more acetaminophen, you may try to replace Tylenol 3 with Tylenol 2 or Tylenol 1 (15mg and 8mg of codeine respectively).

But, of course, the less you use the better.