Last update Dec. 28, 2025
Limited compatibility
Suggestions made at e-lactancia are done by APILAM team of health professionals, and are based on updated scientific publications. It is not intended to replace the relationship you have with your doctor but to compound it. The pharmaceutical industry contraindicates breastfeeding, mistakenly and without scientific reasons, in most of the drug data sheets.
Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.
Thank you for helping to protect and promote breastfeeding.
Tizanidine Hydrochloride in other languages or writings:
Main tradenames from several countries containing Tizanidine Hydrochloride in its composition:
| Variable | Value | Unit |
|---|---|---|
| Oral Bioavail. | 40 | % |
| Molecular weight | 290 | daltons |
| Protein Binding | 30 | % |
| VD | 2.6 | l/Kg |
| Tmax | 1 | hours |
| T½ | 2 - 4 | hours |
Write us at elactancia.org@gmail.com
e-lactancia is a resource recommended by AELAMA of Spain
Would you like to recommend the use of e-lactancia? Write to us at corporate mail of APILAM
Centrally acting muscle relaxant. Oral administration in a daily dose.
At the time of the last update, we found no published data on its excretion in breast milk.
Its pharmacokinetic data: low molecular weight, high fat solubility (Acorda 2006), make it likely to pass into milk in quantities that could be significant.
Expert authors state that if the mother needs to take tizanidine, this is not a reason to interrupt breastfeeding (Hale). Other authors consider it prudent to avoid it during breastfeeding (Hutchinson 2013) or to use it very sporadically and limit it to the minimum sufficient dose. In any case, it is advisable to monitor the infant for possible sedation and/or poor weight gain, especially in the first 3 months of life and when breastfeeding is exclusive.