I am taking amitriptyline but the medication hasnt been working for the past 26 days. Am I able to take a migraine tablet along with this medication?

Probably. It sounds like amitriptyline was prescribed for headache. This is a prevention medication that will not take away all headaches but can help decrease the frequency. If your doctor also prescribed an immediate relief headache medicine, then you can take it along with the amitriptyline.