The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Sleepiness
- Dizziness
- Dry mouth
Less Common Side Effects
- Headache
- Constipation
- Trouble urinating
- Blurry vision
Tylenol PM serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Serious skin reaction: skin reddening, blisters, rash
- Liver damage: severe stomach pain, yellowing of skin or eyes, nausea, vomiting, loss of appetite
- Accidentally taking too much medication (signs of an overdose): tiredness, flushed skin, skin that's warm to the touch, vision changes, confusion
When do Tylenol PM possible side effects begin and end?
Time passed since treatment started:
M
H
D
W
M
Sleepiness
Dizziness
Dry mouth
Source: DailyMed
The following Tylenol PM side effects have also been reported
Side effects that you should report to your care team as soon as possible:
- Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
- Liver injury—right upper belly pain, loss of appetite, nausea, light-colored stool, dark yellow or brown urine, yellowing skin or eyes, unusual weakness or fatigue
- Redness, blistering, peeling, or loosening of the skin, including inside the mouth
- Sudden eye pain or change in vision such as blurry vision, seeing halos around lights, vision loss
- Trouble passing urine
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
- Constipation
- Drowsiness
- Headache
- Nausea
- Upset stomach
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