No. 5mg of hydrocodone (vicodin/lortab dosages start at 5mg with 500mg tylenol) is equivalent to about 40mg of codeine phosphate. Tylenol 3 has 30mg of codeine (300mg tylenol); tylenol 4 has 60mg/300. The main difference is how quickly they act (codeine takes effect in 20-30 minutes...