Usual Adult Dose for Muscle Spasm:
ORAL:
Initial Dose: 1500 mg orally 4 times a day
-Doses of 6000 mg per day are generally used for the first 48 to 72 hours
-In severe cases, doses up to 8000 mg per day may be used
Maintenance dose:
500 mg tablets: 1000 mg orally 4 times a day
750 mg Tablets: 750 mg orally every 4 hours OR 1500 mg orally 3 times a day
PARENTERAL:
-For the relief of moderate symptoms: 1 g IV or IM once, then switch to oral
-For relief of severe symptoms or postoperative conditions: 1 g IV or IM every 8 hours
Maximum Dose: 3 g in 24-hours
Maximum Duration: 3 consecutive days; may repeat after a drug-free interval of 48 hours
Comments:
-Higher doses are recommended in the first 48 to 72 hours of treatment, then doses can usually be reduced to approximately 4000 mg per day.
-Oral tablets should be administered whenever feasible; IV/IM therapy should not be administered for more than 3 consecutive days without a drug-free interval of 48 hours.
Use: As an adjunct to rest and physical therapy for the relief of discomfort associated with acute, painful musculoskeletal conditions.
Usual Adult Dose for Tetanus:
Initial dose: 1 to 2 g IV followed by an additional 1 to 2 g via IV infusion
Maximal Initial Dose: 3 g
Repeat initial IV dose every 6 hours until NG tube or oral therapy is possible
Once NG tube is in place, may crush tablets, suspend in water or saline and administer through tube
-Total oral doses of up to 24 g may be needed based on patient response
Comments:
-There is clinical evidence to suggest this drug may have a beneficial effect in the control of the neuromuscular manifestations of tetanus.
-This drug should not replace the usual procedure of debridement, tetanus antitoxin, penicillin, tracheotomy, attention to fluid balance, and supportive care; if used, this drug should be added to the regimen as soon as possible.
Use: To control the neuromuscular manifestations of tetanus.
Usual Pediatric Dose for Tetanus:
Initial dose: 15 mg/kg or 500 mg/m2 IV; repeat initial dose every 6 hours as needed
Maximum dose: 1.8 g/m2/day IV for 3 consecutive days
Maintenance dose: May be given by injection into tubing or by IV infusion with an appropriate quantity of fluid
Comments:
-There is clinical evidence to suggest this drug may have a beneficial effect in the control of the neuromuscular manifestations of tetanus.
-This drug should not replace the usual procedure of debridement, tetanus antitoxin, penicillin, tracheotomy, attention to fluid balance, and supportive care; if used, this drug should be added to the regimen as soon as possible.
Use: To control the neuromuscular manifestations of tetanus.
Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose. Do not take two doses at one time.
 Detailed Methocarbamol dosage information
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include nausea, extreme drowsiness, fainting, seizure, or coma.
