Methocarbamol is a muscle relaxant medication that blocks nerve impulses, or, in simpler words, the pain sensations sent to your brain. It is prescribed to reduce involuntary muscle spasms, pain, and discomfort by inhibiting the firing of the nerve endings. Robaxin is a brand name for methocarbamol.

Methocarbamol is a prescription medication, but it is not controlled under the Controlled Substances Act (CSA) enforced by the Drug Enforcement Administration (DEA).

Even though it has a low potential to abuse and cause addiction, some people mix methocarbamol with alcohol. It may cause serious health issues. Let's look into it.

A Short Brief Of Robaxin

Robaxin is a short-term medication for muscle pain and discomfort. This medication is used with other treatments, physical therapy, and rest. The active ingredient Methocarbamol is the main reason behind this medication's quick and quality result. Prescription is mandatory to buy Robaxin over the counter or online.

Ingredients of Robaxin

Robaxin contains one active ingredient, methocarbamol, an effective muscle relaxant that reduces muscle spasms.
Along with methocarbamol, Robaxin contains a few inactive ingredients, namely.

  • Corn-starch
  • Magnesium stearate
  • Povidone
  • Sodium lauryl sulfate
  • Sodium starch glycolate
  • Stearic acid


The usual adult dose:

To relieve symptoms of a moderate degree, one dose of 1 gram (one 10 mL vial) IV or I.M. once may be adequate and then switched orally.

Ordinarily, this injection need not be repeated, as the administration of the oral form will usually sustain the relief initiated by the injection.

For the severest cases or in postoperative conditions where oral administration is not feasible, additional doses of 1 gram may be repeated every 8 hours up to a maximum of 3 g/day for no more than three consecutive days.

Clinical evidence suggests that methocarbamol may be beneficial in controlling the neuromuscular manifestations of tetanus. It does not, however, replace the usual procedure of debridement, tetanus antitoxin, penicillin, tracheotomy, attention to fluid balance, and supportive care. ROBAXIN Injectable should be added to the regimen as soon as possible.

For Pediatric Patients:

A minimum initial dose of 15 mg/kg or 500 mg/m² is recommended. This dosage may be repeated every six hours if required. The total amount should not exceed 1.8 g/m² for three consecutive days. The maintenance dosage may be given by injection into the tubing or I.V. infusion with an appropriate quantity of fluid.

The maximum dosage for an adult is 3g in 24 hours. A higher dosage is recommended for post-operative conditions in the first 48 to 72 hours; the dosage should be gradually reduced to 4000 mg once a day.

How Does Robaxin Work?

The exact mechanism of action of methocarbamol is not yet fully understood. Researchers think that Robaxin works by blocking the connection of pain sensation between nerves and the brain. This result in muscle relaxant and give instant relief from muscle pain and spasms.

Methocarbamol has no direct effect on skeletal muscle, and the reason behind the instant pain relief is the soothing effect of this medicine.

Pregnant mothers and those who are breastfeeding may want to avoid taking methocarbamol. Early research indicates that taking methocarbamol during pregnancy may increase congenital disabilities' chances. Methocarbamol may cause conflicts with medications that act as anticholinesterase agents. Share with your doctor if you have a history of myasthenia gravis.

The medicine should be taken as directed by the doctor, but you can also purchase Robaxin online from a certified online pharmacy.

Side Effects Of Robaxin

The following adverse reactions have been reported coincident with the administration of methocarbamol.

  • Cardiovascular system: Bradycardia, flushing, hypotension, syncope, and thrombophlebitis
  • Digestive system: Dyspepsia, jaundice, nausea, and vomiting
  • Hematopoietic and lymphatic system: Leukopenia
  • Immune system: Hypersensitivity reactions
  • Nervous system: Amnesia, confusion, diplopia, dizziness or light-headedness, drowsiness, insomnia, mild muscular incoordination, nystagmus, sedation, seizures, and vertigo
  • Skin and special senses: Blurred vision, conjunctivitis, nasal congestion, metallic taste, pruritus, rash, and urticaria
  • Other: Pain and sloughing at the site of injection

Robaxin can have serious side effects on some patients, such as a lightheaded feeling like you may pass out, a slow heartbeat, seizure, jaundice, pain,/bruising/, swelling, or skin changes. Consult a doctor immediately if you start seeing these side effects.

Why Shouldn't You Mix Alcohol And Robaxin?

Mixing Robaxin and Soma with alcohol is unsuitable for health because both can depress the Central nervous system (CNS) and may cause drowsiness, dizziness, impaired coordination, and other dangerous side effects.
Some people may mistakenly believe that mixing Robaxin with alcohol will increase the muscle relaxant effects of the medication. But in reality, it can enhance the risk of side effects and potentially lead to respiratory depression, coma, and even death.

Additionally, alcohol can worsen muscle spasms and increase muscle pain, which is the opposite effect of what Robaxin is intended to do. Therefore, it is essential to follow the prescription dosage and not mix Robaxin with alcohol or other CNS depressants unless advised to do so by a healthcare provider.

Mixing alcohol with Robaxin can have some severe side effects:

  • Increased drowsiness or tiredness
  • Dizziness or light-headedness
  • Slowed breathing
  • Reduced motor control or coordination.
  • Problems with memory.
  • Increased risk of seizure
  • Increased risk of overdose

Both alcohol and muscle relaxants are addictive substances. Long-term use of Robaxin can increase the risk of being addicted to it.

What To Do If You Have Already Mixed Alcohol With Robaxin?

If you have already mixed alcohol with Robaxin, stop drinking immediately. This might help you not to increase the side effects. It is advised to seek help from a medical professional if you notice these symptoms:

  • Vomiting or nausea
  • Slowed breathing
  • Feeling weak
  • Impaired movement/ lack of coordination
  • Palpitation or arrhythmias
  • Low blood pressure
  • Seizures

Other Things To Avoid While Using Robaxin

Alcohol is not the only thing to avoid while using Robaxin. Particular medicine can also interact with it and may cause serious side effects.

The medication you to avoid:

  • Opioid drugs, such as the pain relievers Vicodin and OxyContin
  • Benzodiazepines, a type of sedative medication such as Klonopin and Xanax
  • Tricyclic antidepressants
  • Monoamine oxidase inhibitors
  • Fluvoxamine, a selective serotonin reuptake inhibitor
  • Ciprofloxacin (Cipro), an antibiotic


Robaxin being a muscle relaxant, can cause depressive impacts on your body, and mixing alcohol with it will not only double the side effects but also prove to be fatal for your life due to the possibility of increased drowsiness and poor coordination.

Do not use more than the recommended dose of methocarbamol, and avoid activities requiring mental alertness, such as driving or operating hazardous machinery, until you know how the medication affects you.

So, It is not advisable to consume alcohol while taking Robaxin. You should avoid or limit the use of alcohol while being treated with methocarbamol. If you find yourself drinking alcohol along with Robaxin, get immediate medical help as soon as possible. Talk to your doctor or pharmacist if you have any questions or concerns.


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