You are currently visiting our International webshop, visitors from the UK, ES, NL, BE, DE and FR. Please make sure you choose the correct webshop of your country, scroll down the page to choose the correct store. If your country is not available in the dropdown below you can shop at the international website. Thank you!

Myorelax 500ml

Expiry date:
Registration number:
BE: BE-V116261

Is the registration number of your country not listed? Then this product falls within the cascade control system.

Myorelax is a muscle relaxant to be used in combination with balanced anaesthesia. The active ingredient is guaifenesin.
More info

Disclaimer: Product in the photo may differ from the actual product.


Myorelax is a 100 mg/ml guaifenesin solution, indicated for the induction of muscle relaxation and immobilisation, as an adjunct to balanced anaesthesia. It is a centrally acting muscle relaxant which gives minimal cardiovascular depression. Myorelax has little to no effect on the diaphragm and the intercostal muscles, meaning there is little to no disturbance of respiration. Myorelax has no analgetic effect and does not affect consciousness.

Instructions for use

Infusion should be given at body temperature. Indicated dosage is 60 to 100 mg per kg body weight. This equates to 0.6 to 1 ml per kg body weight.
Guaifenesin, dextrose monohydrate, N-Methyl-2-pyrrolidone, water for injection, sodium hydroxide, hydrochloric acid.
© 2023 Grovet B.V. All rights reserved.