What is Radioactive iodine (I-131)?

Category: Prescription Drugs

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Radioactive iodine, also known as radioiodine, Iodine-131 and I-131, is selectively used for certain conditions including thyroid cancer and thyrotoxicosis (excessive levels of thyroid hormone in the blood).

Side effects

Side effects as an overall problem

Side effects of Radioactive iodine (I-131)

Severe
3
Moderate
4
Mild
4
None
4

Commonly reported side effects, conditions, and hospitalizations associated with Radioactive iodine (I-131)

Hospitalization
Patients
8
Patients
5
Patients
3
Hospitalization
Patients
3
Patients
2

Show all 29 reported side effects

Dosages

Most common dosages (by patients currently taking Radioactive iodine (I-131))
Dosage
1 other weekly
Patients
1
Why Patients Stopped Taking Radioactive iodine (I-131) (multiple reasons could be selected)
Reason
Course of treatment ended
Patients
38
Reason
Other
Patients
10
Reason
Not indicated
Patients
10
Reason
Doctor's advice
Patients
5
Reason
Did not seem to work
Patients
2
See all 62 patients who’ve stopped taking Radioactive iodine (I-131)

Duration

Stopped Taking Radioactive iodine (I-131)
Duration
Patients
Duration
0-1 month
Patients
1
Duration
1-3 months
Patients
1
Duration
3-6 months
Patients
2
Duration
6 months-1 year
Patients
2
Duration
1-2 years
Patients
0
Duration
2 years or more
Patients
1

Adherence


Always
Patients
12
80%
Usually
Patients
0
0%
Sometimes
Patients
0
0%
Never
Patients
3
20%

Burden


Very
Patients
5
33%
Somewhat
Patients
3
20%
A little
Patients
1
7%
Not at all
Patients
6
40%

Cost per month


Cost per month
$200+
Patients
11
275%
Cost per month
$100-199
Patients
2
50%
Cost per month
$50-99
Patients
0
0%
Cost per month
$25-49
Patients
0
0%
Cost per month
< $25
Patients
0
0%
Cost per month
Not specified
Patients
2
50%

What people switch to and from

Patients started taking Radioactive iodine (I-131) after stopping:
Treatment name(s)
Chemotherapy
Patients
1
Patients stopped taking Radioactive iodine (I-131) and switched to:
Treatment name(s)
Anastrozole (Arimidex)
Patients
1
Last updated:
There are no evaluations for Radioactive iodine (I-131).