Can Calcitriol Influence The Results Of Radio Iodine Scan?

Posted on Tue, 6 Oct 2015

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Tue, 6 Oct 2015 Answered on

Tue, 27 Oct 2015 Last reviewed on

Question : My wife is going to have radiation treatment for thyroid cancer. She takes a Calcitriol 0.5 mcg, her pharmacist told her it could have RDC red die #3. If it has this will it effect the scan or the dose at the end of the week.
Thank you
XXXXXXX XXXX

Answered by Dr. Indranil Ghosh (29 minutes later)

Brief Answer:
no red XXXXXXX 3 is not allowed

Detailed Answer:
Hi
Thanks for your query.

There are various formulations of calcitriol available. You need to check if the particular formulation she is taking has got red XXXXXXX 3 or not. If it does, then it has to be changed before she can undergo radio iodine scan or therapy.

Hope this helps. I will be available for follow up.
Regards

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar