November 29, 2015
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Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)



Since methocarbamol may possess a general central nervous system depressant effect, patients receiving Robaxisal (methocarbamol and aspirin) should be cautioned about combined effects with alcohol and other CNS depressants.


Products containing aspirin should be administered with caution to patients with gastritis or peptic ulceration, or those receiving hypoprothrombinemic anticoagulants.

Methocarbamol may cause a color interference in certain screening tests for 5-hydroxyindoleacetic acid (5-HIAA) and vanillylmandelic acid (VMA).


Safe use of Robaxisal (methocarbamol and aspirin) has not been established with regard to possible adverse effects upon fetal development. Therefore, Robaxisal (methocarbamol and aspirin) should not be used in women who are or may become pregnant and particularly during early pregnancy unless in the judgment of the physician the potential benefits outweigh the possible hazards.


It is not known whether methocarbamol is secreted in human milk; however, aspirin does appear in human milk in moderate amounts. It can produce a bleeding tendency either by interfering with the function of the infant's platelets or by decreasing the amount of prothrombin in the blood. The risk is minimal if the mother takes the aspirin just after nursing and if the infant has an adequate store of vitamin K. As a general rule, nursing should not be undertaken while a patient is on a drug.


Safety and effectiveness in children 12 years of age and below have not been established.


Robaxisal (methocarbamol and aspirin) may rarely cause drowsiness. Until the patient's response has been determined, he should be cautioned against the operation of motor vehicles or dangerous machinery.

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 12/8/2004


Robaxisal - User Reviews

Robaxisal User Reviews

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