robaxin®-750 (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. robaxin ®-750 is available as an orange capsule-shaped, film-coated tablet containing 750 mg of methocarbamol, USP for oral administration. In addition to the inactive ingredients present in robaxin ® , robaxin ® -750 also contains D&C Yellow 10. In 1956, concerned with the growth of powerful new drugs, the FDA launched a drug reaction reporting system with the national associations of medical record librarians, hospital pharmacists, the American Medical Association (AMA), the American Hospital Association, and 11 hospitals. Detailed dosage guidelines and administration information for Robaxin (methocarbamol). Includes dose adjustments, warnings and precautions. Repeat dosage every 6 hours until a nasogastric (NG) tube can be inserted for oral therapy. The tablets or capsule contents may then be crushed and suspended in water or saline solutions and administered through the NG tube. Dosages of up to 24 grams/day NG/PO may be required. Medscape - Musculoskeletal pain dosing for Robaxin (methocarbamol), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. robaxin®- 750 is available as an orange capsuleshaped, filmcoated tablet containing 750 mg of methocarbamol, USP for oral administration. In addition to the inactive ingredients present in robaxin®, robaxin® 750 also contains D&C Yellow 10. DESCRIPTION. robaxin ® /robaxin ®-750 (methocarbamol tablets, USP), a carbamate derivative of guaifenesin, is a central nervous system (CNS) depressant with sedative and musculoskeletal relaxant properties. Detailed dosage guidelines and administration information for Robaxin Tablets (methocarbamol). Includes dose adjustments, warnings and precautions. robaxin ®-750 is available as an orange capsule-shaped, film-coated tablet containing 750 mg of methocarbamol, USP for oral administration. In addition to the inactive ingredients present in robaxin ® , robaxin ® -750 also contains D&C Yellow 10.