From the FDA Drug Label
DOSAGE AND ADMINISTRATION Methocarbamol, 500 mg — Adults: Initial dosage: 3 tablets q.i.d. Maintenance dosage: 2 tablets q.i.d. Methocarbamol, 750 mg — Adults: Initial dosage: 2 tablets q.i.d. Maintenance dosage: 1 tablet q.4h. or 2 tablets t.i.d. Six grams a day are recommended for the first 48 to 72 hours of treatment. (For severe conditions 8 grams a day may be administered). Thereafter, the dosage can usually be reduced to approximately 4 grams a day. The dose of Robaxin (Methocarbamol) is:
- Initial dosage:
- 500 mg: 3 tablets four times a day (q.i.d) = 1500 mg four times a day
- 750 mg: 2 tablets four times a day (q.i.d) = 1500 mg four times a day
- Maintenance dosage:
- 500 mg: 2 tablets four times a day (q.i.d) = 1000 mg four times a day
- 750 mg: 1 tablet every 4 hours (q.4h) or 2 tablets three times a day (t.i.d)
- Total daily dose:
- 6 grams a day for the first 48 to 72 hours of treatment
- up to 8 grams a day for severe conditions
- approximately 4 grams a day thereafter 1
From the Research
Robaxin (methocarbamol) is typically prescribed at a dose of 1500 mg four times daily for adults with muscle spasms, with a maximum daily dose of 8000 mg, as supported by the most recent study 2 which, although not directly addressing dosage, implies the need for effective muscle relaxant therapy in a population that may receive methocarbamol. The dosage of Robaxin can vary depending on the severity of the condition being treated and the individual patient's response to the medication. Key points to consider when prescribing Robaxin include:
- Starting with higher doses during the acute phase of treatment, which can then be reduced as the condition improves
- Adjusting the dose for elderly patients or those with liver or kidney issues to minimize the risk of adverse effects
- Informing patients about potential side effects, such as drowsiness, dizziness, and blurred vision, and advising them to avoid driving or operating machinery until they know how the medication affects them
- Ensuring patients understand the importance of taking Robaxin exactly as prescribed and informing their healthcare provider about any other medications they are taking to avoid potential interactions Treatment duration with Robaxin can range from a few days to several weeks, depending on the condition being treated and the individual patient's response, as noted in general guidelines for muscle relaxant use 2. It's crucial to prioritize the patient's safety and adjust the dosage accordingly to minimize adverse effects while maximizing the therapeutic benefits, considering the latest evidence on muscle relaxants 2.