No, it is not advisable to take Diazepam and Methocarbomol together. Diazepam and Methocarbamol together can lead to adverse symptoms such as impairment in thinking and muscle coordination. These medications are interactive and can be lethal. It is hence, suggested to consult the doctor before taking both the medicines together.

Diazepam is a medication that was first sold as Valium used to treat conditions such as muscle spasm, anxiety, withdrawal symptoms, benzodiazepine withdrawal syndrome, insomnia. Methocarbamol is marketed as Robaxin and used to treat short-term musculoskeletal pain.

Diazepam and Methocarbomol work by blocking the naturally occurring nerve impulses in the brain, which are the pain-causing sites.  Thus, to avoid any side effects, it is recommended to take both the medications separately, however, under the medical expert’s surveillance (Crankshaw, D.P. and Raper, C., 1968).

Side effects of taking Diazepam and Methocarbomol Together?

Taking both Diazepam and Methocarbamol can lead to common side effects, namely:

Common Side Effects: 

These are the side effects that can fade away in a few days. If not, then do consult the doctor regarding the case. 

  • Nausea or vomiting 
  • Downiness or dizziness                  
  • Lack of concentration 
  • Impairment of thinking 
  • Lack of motor coordination 

These are a few common side effects.  

Warning of taking Diazepam and Methocarbamol together?

It is not advised to take any of these medications if allergic to them.

  • Do not consume this medication together if you are undergoing the following conditions: 
  • Do not take Diazepam and Methocarbomol if diagnosed with any recent heart conditions such as heart attack.
  • Do not take any of these medications if have any liver issues.
  • It is not advisable to take this medication if you have kidney issues. 
  • Do not consume both of these drugs with alcohol as it can lead to side effects or further adverse issues. 
  • Do not take the medications if diagnosed with mental health issues such as depression, anxiety, or suicidal tendency. 

These are a few instructions to follow. It is wise to connect with the doctor before taking any medications.  

Precautions to Follow

  • Before taking Diazepam and Methocarbamol, do follow these precautions: 
  • It is not advisable to take both medications together and indulge in any high-intensity activity as taking it can decrease motor coordination.
  • Don’t take both medications together with alcohol, as it can make the side effects even more adverse. 
  • It is not advised to take this drug if you have any allergies in general or are allergic to Methocarbamol or diazepam. 
  • Do consult the doctor before taking any of the medications with Diazepam or Methocarbamol, such as any antidepressants or sleeping pills, to avert any further interactions or any prescription or OTC drugs. 
  • Confront the medical practitioner regarding any history of ailments or issues such as alcohol abuse, depression, suicidal thoughts, anxiety, and furthermore. 
  • It is safe to take methocarbamol or diazepam during pregnancy; however, consult a medical expert before taking any further action. 
  • Consult the medical practitioner if taking any other tablets, herbs, or vitamins can lead to interactions. 

How to Administer Methocarbamol or Diazepam?


Methocarbamol is a medication that can be taken orally with water. You can buy Methocarbamol as an OTC from online pharmacy.   The medication can be taken with or without food. And can be divided to 4 times a day in the beginning and can be further changed to 3-6 times a day.  In any case, consult the doctor and follow the given instructions (Preston, K.L., Guarino, J.J., Kirk, W.T. and Griffiths, R.R., 1989).


Methocarbamol is a medication that can be taken orally with water. The medication can be taken with or without food. And can be divided to 3 times a day. In any case, consult the doctor and follow the given instructions (Cereghino, J.J., Mitchell, W.G., Murphy, J., Kriel, R.L., Rosenfeld, W.E. and Trevathan, E., 1998).

Strength of Methocarbamol and Diazepam

Strength and form of Methocarbamol

  • Form: The dosage comes in the form of a tablet and injectable solution.
  • Strength: The strength of Methocarbamol is 500mg and 750mg, respectively. 

 Strength and form of Diazepam:

  • Form: Diazepam comes in three states, namely oral solution, tablet, and oral concentrate.
  • Strength: The oral dosage comes in 2 mg, 5 mg, or 10 mg.

Dosage of Methocarbamol and Diazepam

Dosage of Methocarbamol 

The recommended dosage of Methocarbamol is as follows: 

In the case of muscle spasms: 

  • Adult Dosage: The initial dosage of Methocarbamol IS 1500mg 4 times per day.
  • Pediatric Dosage: The minimum pediatric dosage is about 15mg or 500mg every 6 hours. 

Dosage of Diazepam: 

  • Adult dosage: 2mg to 10mg is the dosage for diazepam, which should be taken three to four times a day.
  • Pediatric dosage: The pediatric dosage is about 1.5 to 2.5mg orally.


Both Methocarbamol and Diazepam treat muscle-skeletal pain and cannot be taken together. It can lead to side effects such as Lack of concentration, Impaired thinking, lack of motor coordination, nausea, and more.

Consult the doctor before taking any other medication, and take the drug only when prescribed. Do not forget to follow the prescribed dosage and instructions before taking the medication.


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