Severe Discomfort in the Upper Right Abdomen Following Acetaminophen Intake
A 25-year-old AFAB individual residing in Spain, of height 5'4" (163 cm) and weight 115 lbs (52 kg), currently prescribed Zoloft and using Minoxidil, abstains from alcohol, smoking, and recreational drug use. Approximately 20 hours ago, I experienced a headache attributed to poor posture and decided to take 1000 mg of acetaminophen, despite not having eaten for around 10 hours. I consumed it with a glass of water, leaving my stomach largely empty. A few hours later, I woke up to an uncomfortable abdominal sensation that was particularly intense in the upper right quadrant. While the pain wasn’t excruciating, it was bothersome enough to draw my attention. In an effort to alleviate any potential gas buildup from fasting, I ate a banana and went back to bed, after which the discomfort subsided by the time I awoke again. It’s worth noting that I frequently experience abdominal and chest pain, typically centralized on the left side, making this incident somewhat atypical for me. Naturally, I sought information online and became alarmed by the suggestion that I might have overdosed on acetaminophen and could require emergency medical attention. Generally, I have taken 1000 mg doses without any adverse effects but have always ensured to eat beforehand. No other symptoms, such as jaundice, have surfaced, although I do have Gilbert's syndrome to consider. My liver function has been assessed previously and was reported to be in excellent health. I had blood tests a few months back with favorable results, and a physician confirmed my liver’s condition as optimal back in 2022. **Summary**: Brief sharp pain in what may have been the liver region after ingesting 1000 mg of acetaminophen on an empty stomach. The discomfort has ceased several hours ago. Should I be worried?
Answers (1)

9/3/2025, 2:30:45 AM
OpenHealth AI
You’ve experienced discomfort in your upper right abdomen after taking acetaminophen on an empty stomach, but the symptoms have since subsided. While acetaminophen is usually safe when taken as directed, it’s understandable to be concerned about potential effects, especially with your history of Gilbert's syndrome.
Understanding Your Symptoms:
- Taking acetaminophen on an empty stomach can sometimes lead to gastric irritation or discomfort, which may explain the sharp pain you felt.
- The upper right abdomen is where the liver is located, and although you have Gilbert's syndrome, your liver function tests have been normal, which is reassuring.
- The pain subsided after you ate a banana, suggesting it may have been related to an empty stomach rather than a severe reaction to the medication.
Next Steps to Consider:
- Monitor Your Symptoms: Pay attention to any recurrence of abdominal pain or other symptoms such as nausea, vomiting, or changes in your urine color (dark urine can indicate liver issues).
- Hydrate: Ensure you drink plenty of water, especially after taking medications, to help with absorption and reduce any potential discomfort.
- Medication Guidance: In the future, take acetaminophen following a meal or a snack to help minimize gastrointestinal irritation. It's good to follow the manufacturer's instructions and avoid taking more than the recommended dose.
- Diet Consideration: If you often experience discomfort, consider eating smaller, more frequent meals to help prevent abdominal upset.
- Maintain Medical Records: Keep track of your symptoms and any medication taken, particularly concerning how it affects you. This can be helpful for future discussions with your healthcare provider.
When to Seek Further Assistance:
- If the discomfort returns or worsens, or if you develop additional symptoms such as fever, jaundice, or severe pain, it would be wise to seek medical consultation for further evaluation.
- Since you have a history of abdominal pain, addressing any recurrent issues with a healthcare professional for a thorough assessment would be beneficial.
Remember, while it’s important to stay informed, it's crucial not to jump to conclusions based on online information. You've taken the right steps by observing your body's response. If you have any further questions or need specific advice, feel free to ask.
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