Does Advil PM cause next-day drowsiness?
Yes. Advil PM contains an antihistamine (diphenhydramine) plus ibuprofen. Diphenhydramine commonly causes drowsiness, and some people feel it into the next day, especially if they take it later in the evening or take a higher dose. This can impair alertness and coordination the next morning.
What in Advil PM causes the drowsiness?
The drowsiness comes from diphenhydramine, the sleep ingredient. Ibuprofen is not typically what causes next-day sleepiness.
Who is more likely to feel drowsy the next day?
Next-day drowsiness is more likely if you:
- Take the dose late at night or don’t get a full night of sleep
- Are sensitive to antihistamines
- Are older (older adults are more prone to sedation and side effects)
- Mix it with other sedating substances like alcohol, opioids, or other sleep/cold medications
What should you do if you need to be alert the next morning?
Avoid driving or doing tasks that require full attention if you feel sleepy. If you need to be alert early, consider asking a pharmacist or clinician about alternatives that don’t include diphenhydramine, or about lower-sedation options for pain and sleep.
When to seek help
If next-day sleepiness is severe, you feel confused, have trouble breathing, or develop unusual reactions, stop using it and get medical advice.