Methocarbamol (the active element contained in Robaxin) vials for injection include polyethylene glycol 300 (PEG 300). Bigger quantities of PEG 300 could enhance preexisting renal acidosis as well as urea retention in clients with renal insufficiency. [Ref]
Renal negative effects including urine discoloration (black, blue, brownish, or eco-friendly) have actually been reported after oral management in some clients. [Ref]
For Intravenous and Intramuscular Use Only. Complete grown-up dosage ought to not go beyond 30 mL (3 vials) a day for greater than 3 successive days except in the treatment of tetanus. If the condition continues, a like training course could be repeated after a drug-free period of 48 hours. Dosage and also frequency of injection must be based upon the seriousness of the problem being dealt with and therapeutic response noted.
For the relief of signs and symptoms of modest level, one dose of 1 gram (one 10 mL vial) could be appropriate. Normally this injection need not be repeated, as the administration of the dental type will typically sustain the comfort launched by the injection. For the severest situations or in postoperative conditions where dental management is not practical, added doses of 1 gram may be repeated every 8 hours up to a maximum of 3 g/day for no greater than 3 consecutive days.
Robaxin Muscle Relaxer. Robaxin 500.