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Prescription Drug Coverage

Robaxin (Methocarbamol) Medicare Coverage

You may be able to find Medicare plan options in your area that cover Methocarbamol (generic Robaxin). Learn more about Robaxin and find Medicare Advantage plans in your area that cover other prescription drugs.
Chemical name: Methocarbamol

Brand name: Robaxin

Typical dosage: 500mg

Typical type: Tablet1

Robaxin is used to treat muscle spasms, muscle pain and stiffness. Robaxin is available as a brand name or generic and comes as an oral tablet.

Robaxin is medication that contains the active ingredient Methocarbamol. Robaxin is used to treat muscle spasms as well as muscle pain and stiffness.

Robaxin works in the brain to help relax muscles. It is typically taken 4 times daily by mouth or 3 times daily if you are using the injection form.

Side effects of taking Robaxin include upset stomach, vomiting, dizziness, drowsiness, headache, insomnia, stuffy nose and a metallic taste in your mouth. If you use the injection, you may notice pain where you gave yourself the shot.

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Does Medicare cover Robaxin or Methocarbamol?

While some Medicare plans may not cover Robaxin, 60% of Medicare Advantage plans and Medicare Part D plans cover Methocarbamol.1

  • Medicare Advantage plans that offer prescription drug coverage are called Medicare Advantage Prescription Drug Plans (MA-PD). Most Medicare Advantage beneficiaries (88 percent) are enrolled in MA-PDs.2

  • Medicare prescription drugs plans each have their own formulary, or drug list, that details what prescription drugs are covered by the plan and how they are covered.

Drug coverage may vary based on plan availability. You may be able to find Medicare Advantage plan options in your area that cover Methocarbamol.

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You can also compare Part D prescription drug plans available where you live and enroll in a Medicare prescription drug plan online when you visit

Average costs for Methocarbamol with Medicare drug coverage1

Your copay and deductible costs for any prescription drug can vary depending on what coverage stage you’re in.

Deductible stage Typical copay stage
Your deductible is the amount of money you must spend on covered drugs before your Medicare drug coverage starts paying its share of costs.

In the deductible stage, you’re responsible for the full cost of your prescription drugs.

Some Medicare prescription drug plans have a $0 deductible. Medicare drug plans cannot have a deductible more than $480 in 2022.
After you meet your Part D deductible, you enter the initial coverage period.

During this phase (the typical copay stage), you pay a copayment (flat fee) or coinsurance (percentage) for your covered medications.
$5 – $130 Free – $47

Additional information

If you are using the injectable form of Robaxin, do not use for more than 3 straight days.

Typically, Robaxin is used alongside physical therapy, pain medications, rest and other therapies. It may not be effective when used alone.

Robaxin can cause you to be dizzy or drowsy after you take it. Avoid doing activities that require your full attention, such as driving. Talk to your doctor before drinking alcohol or using other medications that slow your actions.

Do not take Robaxin if you are pregnant or planning to become pregnant.



This article is for informational purposes only. It is not healthcare advice, treatment, or diagnosis. It is not an endorsement of or recommendation for this medication. Speak to your doctor or healthcare provider about your specific healthcare needs, including your prescription medications. Only take medication as directed by your doctor.

Coverage and costs of prescription medications will vary by Medicare plan. Not all plans are available in all areas.


Written by Hayden Gharibyar, Pharm.D.