Contact for
Medical Information, Reporting Safety and Quality Related Issues:

If you need more information about our products or wish to report an adverse event or product quality related issue, please contact us via the email address or our Medical Information Direct Line below:

Phone:  + 44 870 351 8960

Fax:  + 44 1494 486 298

Adverse events should be reported:

If, as a patient, you get any side effects talk to your doctor, pharmacist or nurse.
This includes any possible side effects not listed in the package leaflet.

By reporting side effects you can help provide more information on the safety of this medicine.

Reporting forms and information can be found at

Adverse events should also be reported to Grunenthal Ltd. at

Zydol® (tramadol hydrochloride)

Zydol® Capsules, Zydol Soluble Tablets,
Zydol Solution for injection, Zydol XL, Zydol SR

The links below will direct you to, an external website providing information about medicines in the UK, including the Patient Information Leaflet (PIL) and the Summary of Product Characteristics (SPC).

The product information provided in this site is intended for residents of the UK only. The following documents are hosted externally. Grunenthal UK Ltd. is not responsible for the content of external sites.

The colour of the Zydol (tramadol) 50mg capsules have changed to yellow/yellow from yellow/green. The colour change has entered the supply chain from August 2013. The drug quality has not been affected.

M-N/A-UK-09-18-0013 Date of preparation September 2018

last update:  18 Oct 2018