Patients can often be confused about mixing Prescription Drugs with Supplements & Vitamins.
Even Prescribed Drugs need checking against each other for possible interactions.
This is why l always recommend you have all your Medications dispensed from the same Pharmacy & if you go to the Hospital take the Printed List of Repeat Medications incase you are prescribed New Meds that are dispensed at the Hospital Pharmacy who will ask what other Medication you are on. This is particularly important if it is for another Speciality & not Rheumatology.
My other recommendation is book an appointment with your Pharmacist to go through your Medications & always ask them if you are/or considering taking any supplements.
This is an Drug Interaction Checker
NB - BUT IT IS NOT INSTEAD OF A PROFESSIONAL OPINION
webmd.com/interaction-check...
Kind Regards
MrsN