Tendonitis is inflammation of tendon, non-steroidal anti-inflammatory drugs should be better choice than Ultracet.
More detailed information about your age, allergic history, other co-existing diseases is required before prescribing medicines.
More details about etiology, cause of inflammation, duration and progression of complaints is required to plan next step.
Next Steps
If there is no history of trauma/ injury, may try Physiotherapy, Local Ultrasound, IFT.
Health Tips
Detailed history required. Avoid self medicating.