Skip to content

What to do if you throw up Tylenol?

4 min read

According to expert opinions, most oral medications, including Tylenol (acetaminophen), are largely absorbed within 20 to 30 minutes, which makes the timing of your vomiting critical. Knowing what to do if you throw up Tylenol can prevent accidental overdose while ensuring you get the intended pain and fever relief.

Quick Summary

Deciding whether to retake a dose of Tylenol after vomiting depends on timing, patient age, and the medication's form. Factors such as visible medication in the vomit, patient condition, and risk of accidental overdose must be considered, and medical advice should be sought for confirmation, especially for children.

Key Points

  • Check the time: If you vomit shortly after taking a tablet, a second dose might be considered if the pill is seen intact, but for liquid versions, absorption is likely rapid.

  • Do not guess: If you are unsure of the timing or if you only see liquid in the vomit, do not take another dose without consulting a healthcare provider.

  • Hydrate cautiously: Sip clear fluids like water or ginger ale to prevent dehydration without triggering further nausea.

  • Recognize overdose risk: Taking too much Tylenol can cause severe liver damage, so never exceed the maximum daily dose and watch for symptoms like abdominal pain or confusion.

  • Consult a professional: For children, or if you have any uncertainty about redosing, contact a doctor or Poison Control for expert advice.

  • Wait for the next dose: If more than an hour has passed since taking Tylenol, assume some was absorbed and wait until your next scheduled dose.

In This Article

Immediate Steps After Vomiting Tylenol

When you vomit shortly after taking Tylenol, the first step is to assess the situation calmly. Do not automatically take another dose. The immediate action you should take depends on how much time has passed and whether you can see the medication in your vomit.

  • Stay calm and wait: Take a moment to see if you feel like you might vomit again. If you are still nauseous, waiting until the feeling passes is a good strategy.
  • Inspect the vomit: While unpleasant, if you can see a large, intact pill or capsule in the vomit, it's highly likely that little to no medication was absorbed. If you only see liquid or partially dissolved remnants, some absorption may have occurred.
  • Hydrate cautiously: Sip small amounts of clear fluids, like water or ginger ale, to prevent dehydration without upsetting your stomach further.

Factors to Consider Before Redosing Tylenol

Before deciding whether to take another dose, consider these factors to prevent an accidental overdose, which can cause severe liver damage.

Time is a Critical Factor

The amount of time that passes between taking the medication and vomiting is the most important factor.

  • Vomiting within a short time frame: If you throw up within a short window after taking a tablet form and can see the tablet, it's generally considered that minimal absorption has occurred. However, confirming with a healthcare professional before redosing is advisable.
  • Vomiting within an intermediate time frame: If you vomit within an intermediate time frame, some absorption may have occurred. Guidelines on redosing in this situation can vary, and consulting a healthcare professional is the safest approach.
  • Vomiting over an hour later: By this point, the medication has likely been absorbed by your body. You should not repeat the dose. Wait until your next scheduled dose.

Product Formulation and Patient Age

Different formulations of Tylenol and patient age influence how quickly the medication is absorbed.

  • Liquid vs. Tablet: Liquid acetaminophen is absorbed much faster than a pill or capsule. If you or your child vomits a liquid dose, especially if it was swallowed, repeating the dose is typically not recommended.
  • Children vs. Adults: Children are more susceptible to the risks of overdose. For children, the recommendations can be stricter. The best course of action is always to consult with a pediatrician or the poison control center.

Signs of Potential Overdose

If you have any suspicion of an overdose, do not hesitate to contact a poison control center immediately. Symptoms of acetaminophen overdose can include nausea, vomiting, abdominal pain, and confusion, though they may not appear for up to 24 hours.

When to Absolutely Avoid a Second Dose

There are clear situations where a second dose should never be taken:

  • If uncertain of the timing: If you aren't sure how long it's been since you took the first dose, it's best to err on the side of caution and wait.
  • If you cannot confidently identify the whole pill in the vomit: This is especially true for liquid doses where it is impossible to know how much was absorbed.
  • If the medication was taken more than 60 minutes prior: The risk of overdose outweighs any potential benefit.
  • If you are already taking other medications containing acetaminophen: Overdose risk is significantly higher if you are also taking combination cold and flu remedies that contain the same active ingredient.

Guidelines for Adults vs. Children

Guidelines for re-dosing Tylenol after vomiting are slightly different for adults and children due to differences in body weight and metabolism. The following table provides a quick comparison:

Factor Adults (12+ years) Children (<12 years)
Vomits shortly after taking a tablet Can consider redosing if the pill is seen intact, but consult a healthcare provider. Can generally consider giving another dose, but confirm with a healthcare provider.
Vomits within an intermediate timeframe Do not re-dose without consulting a healthcare provider. Contact a pediatrician or Poison Control for guidance; do not give another dose without advice.
Vomits >60 min Do not repeat the dose. Wait for the next scheduled dose. Do not repeat the dose. Wait for the next scheduled dose.
Liquid Formulation Never repeat the dose after vomiting. Never repeat the dose after vomiting.

Risk of Tylenol Overdose and Liver Damage

Acetaminophen overdose is a serious medical emergency that can lead to acute liver failure. The liver is responsible for metabolizing acetaminophen, and too much can overwhelm its capacity, leading to toxic byproducts that damage liver cells. Initial symptoms can be mild and mimic the flu, such as nausea and abdominal pain, but liver damage can progress silently for days. Timely treatment is critical, and a medical professional should be contacted at the first sign of a potential overdose.

When to Contact a Healthcare Professional

Always contact a healthcare provider or poison control center if you are unsure, have concerns, or if any of the following occur:

  • If vomiting is repetitive or persistent.
  • If you suspect an overdose has occurred, or you are unsure of the total amount taken.
  • If you are unable to keep any fluids down and feel dehydrated, dizzy, or weak.
  • For infants under 3 months of age with a fever.
  • If you or your child has a pre-existing liver condition.

Conclusion

Knowing what to do if you throw up Tylenol is a simple but important aspect of medication safety. The key takeaway is to act based on the time elapsed and the medication form. When in doubt, always prioritize safety by consulting a healthcare professional, especially for children. Never exceed the daily maximum dose, and be aware of other medications that might also contain acetaminophen to avoid accidental overdose. For further reading on medication safety and potential side effects, you can visit the U.S. Food and Drug Administration's website.

Frequently Asked Questions

Most oral medications, including Tylenol, begin to be absorbed within 20 to 30 minutes. The absorption rate can be affected by factors like whether you have food in your stomach.

If you vomit shortly after taking a tablet form and see the intact pill, it is likely that little medication was absorbed. However, it's always safest to confirm with a healthcare provider before redosing.

If a child vomits liquid Tylenol after swallowing it, do not repeat the dose. Liquid formulas are absorbed much faster, and there is a high risk of overdose if you give another dose.

You should contact poison control immediately if you suspect an overdose, especially if the amount taken is unknown, or if you or your child exhibits symptoms like persistent vomiting or severe abdominal pain.

Initial symptoms can include nausea, vomiting, sweating, and abdominal pain. These can appear within 24 hours, but severe symptoms of liver damage, like jaundice (yellowing skin/eyes), may take longer to develop.

To prevent nausea, try taking Tylenol with food or a full glass of water. Avoid lying down immediately after taking the medication. If nausea persists, consult your healthcare provider.

Yes. Tylenol PM contains diphenhydramine in addition to acetaminophen. Taking an additional dose of Tylenol PM could cause side effects related to the antihistamine component, so waiting and monitoring symptoms is advised.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.