- Prior use within the last 3 days before Visit 1 or concomitant use of any anti-inflammatory drugs, heparinoids, muscle relaxants or analgesics. Long-acting glucocorticoids must have been discontinued 10 days before study entry. Spinal injections should have been discontinued in due time (investigator's judgement) before patient enrolment to allow complete wash-out of the active ingredient based on investigator's judgment