Allergies
Do not take Robaxacet if you are allergic to methocarbamol, acetaminophen, or any other ingredient in the product.
Seek urgent medical attention if you develop hives, swelling of the face or throat, or difficulty breathing.
Liver Problems
Robaxacet contains acetaminophen, which can cause serious liver damage if too much is taken.
Tell your healthcare provider if you have liver disease or a history of liver problems. Do not take more than the recommended dose, and avoid using other products that also contain acetaminophen unless a healthcare provider tells you to do so.
Alcohol Use
Drinking alcohol while taking Robaxacet may increase the risk of liver damage from acetaminophen and may also worsen drowsiness caused by methocarbamol.
Avoid or limit alcohol during treatment, especially if you drink regularly or have liver problems.
Kidney Problems
Tell your healthcare provider if you have kidney disease.
Kidney problems may affect how your body handles methocarbamol and its breakdown products. Extra caution or closer monitoring may be needed, especially in people with significant kidney impairment.
Drowsiness and Dizziness
Methocarbamol can cause drowsiness, dizziness, or reduced alertness.
Use caution when driving, operating machinery, or performing activities that require concentration until you know how Robaxacet affects you.
Alcohol, sedatives, sleeping medications, and other medicines that slow the central nervous system may increase these effects.
Myasthenia Gravis
Tell your healthcare provider if you have myasthenia gravis or another condition that causes muscle weakness.
Methocarbamol may worsen weakness in some people, especially when used with certain other medications.
Drug Interactions
Robaxacet can interact with other medications.
Important interactions may occur with:
- Other products containing acetaminophen
- Alcohol
- Sedatives or sleeping medications
- Opioid pain medications
- Certain medications that affect the central nervous system
- Warfarin and other blood thinners
Regular or prolonged use of acetaminophen may affect the response to warfarin in some patients. Tell your healthcare provider about all prescription medications, over-the-counter products, vitamins, supplements, and herbal products you use.
Pregnancy
Tell your healthcare provider if you are pregnant, think you may be pregnant, or plan to become pregnant.
The use of Robaxacet during pregnancy should be discussed with a healthcare provider. They can determine whether the potential benefits of treatment outweigh any possible risks.
Breastfeeding
Tell your healthcare provider if you are breastfeeding or plan to breastfeed.
A healthcare provider can help determine whether Robaxacet is appropriate based on the medicines it contains, the dose needed, and the potential risks and benefits.
Do Not Take More Than Recommended
Taking more Robaxacet than directed can be dangerous because it contains acetaminophen.
An acetaminophen overdose can cause severe liver damage, and symptoms may not appear immediately.
If you accidentally take more than the recommended amount, contact a poison control center or seek medical attention right away, even if you feel well.
Check Other Medication Labels
Many cold, flu, headache, pain, and sleep products also contain acetaminophen.
Check the ingredient list before taking another medication with Robaxacet. Using more than one acetaminophen-containing product at the same time can lead to an accidental overdose.
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