Which of the following is a combination acetaminophen and codeine dosage form?

Tylenol Number One is a specific combination dosage form that contains acetaminophen and codeine. Acetaminophen is an analgesic and antipyretic, while codeine is a narcotic analgesic that can enhance the pain-relieving effects of acetaminophen. This combination is often used for the treatment of moderate pain, benefiting from the synergistic effects of both components.

Tylenol Extra Strength contains a higher dose of acetaminophen alone, without any codeine. Advil is primarily ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID), and it does not contain either acetaminophen or codeine. Excedrin is another combination medication, but it typically contains acetaminophen, aspirin, and caffeine, and also lacks codeine.

In this context, Tylenol Number One is the only option that specifically includes both acetaminophen and codeine, making it the correct choice for this question.