Methocarbamol (the active ingredient had in Robaxin) vials for injection consist of polyethylene glycol 300 (PEG 300). Larger amounts of PEG 300 can raise preexisting kidney acidosis and urea loyalty in individuals with renal deficiency. [Ref]

Renal side results consisting of pee staining (black, blue, brownish, or environment-friendly) have actually been reported after dental administration in some people. [Ref]

For Intravenous and Intramuscular Use Only. Total grown-up dose ought to not exceed 30 mL (3 vials) a day for even more than 3 consecutive days other than in the therapy of tetanus. If the condition continues, a like program could be repeated after a drug-free interval of 48 hours. Dosage and frequency of injection should be based upon the seriousness of the problem being treated as well as therapeutic reaction kept in mind.

For the comfort of signs and symptoms of moderate level, one dose of 1 gram (one 10 mL vial) might be ample. Ordinarily this injection need not be duplicated, as the administration of the oral type will generally preserve the comfort initiated by the treatment. For the severest situations or in postoperative disorders in which oral management is not feasible, additional doses of 1 gram may be duplicated every 8 hours up to an optimum of 3 g/day for no greater than 3 successive days.

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