Answer
Doxazosin mesilate is the salt used in the tablet. Product information commonly states the amount equivalent to doxazosin, the active medicine.
Sources for this answer
- Doxazosin 8mg tablets — Current selected SmPCemc · Summary of Product Characteristics
- Doxadura XL 4mg Prolonged Release Tablets — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.