Linked from
The 6 pages that link to Ankylosing spondylitis, each with the reason it gives.
CelecoxibRelated: Celecoxib is used to reduce pain and stiffness in this condition.
UveitisRelated: Its associated acute anterior uveitis may precede or accompany joint symptoms.
IndometacinRelated: Indometacin is used to reduce its inflammatory spinal pain and stiffness.
PiroxicamRelated: Piroxicam has been used to relieve the inflammatory pain of this condition.