What is Levothyroxine?

Category: Prescription Drugs

Most popular types: Synthroid Levoxyl Levothroid Show all

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See also: Thyrolar-1

Levothyroxine is a synthetic form of the human hormone thyroxine. The drug is used to treat hypothyroidism (underactive thyroid), which can lead to weight gain, depression, and pain.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Hypothyroidism 3,018 967
Hashimoto's thyroiditis 503 202
General health 144 19
Thyroid cancer 100 20
Fatigue 34 18

Show all 85 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 40
Moderate 95
Mild 113
None 1,000

Commonly reported side effects and conditions associated with Levothyroxine

Side effect Patients
Fatigue 31
Weight gain 26
Hair loss 25
Headaches 15
Heart palpitations 12
Nausea 12

Show all 186 reported side effects

Dosages

Based on patients currently taking Levothyroxine

Dosage Patients
50 mcg (0.05 mg) daily 81
0.075 mg daily 66
0.1 mg daily 65
100 mcg (0.1 mg) daily 58
0.05 mg daily 51
75 mcg (0.075 mg) daily 46
0.125 mg daily 46
0.025 mg daily 39
0.088 mg daily 39
25 mcg (0.025 mg) daily 33

See all 112 dosages

Why patients stopped taking Levothyroxine

Multiple reasons could be selected

Reason Patients
Did not seem to work 92
Doctor's advice 75
Other 66
Side effects too severe 48
Personal research 44
Change in health plan coverage 18
Course of treatment ended 18
Expense 12
See all 285 patients who've stopped taking Levothyroxine

Duration

Currently taking Levothyroxine

Duration Patients
1 - 6 months 10
6 months - 1 year 35
1 - 2 years 67
2 - 5 years 147
5 - 10 years 241
10 years or more 444

Stopped taking Levothyroxine

Duration Patients
Less than 1 month 25
1 - 6 months 53
6 months - 1 year 39
1 - 2 years 33
2 - 5 years 49
5 - 10 years 43
10 years or more 51
Adherence
Adherence Evaluations
Always 1074
Usually 140
Sometimes 8
Never taken as prescribed 26
Burden
Burden Evaluations
Very hard to take 22
Somewhat hard to take 83
A little hard to take 183
Not at all hard to take 960
Cost per month
Cost per month Evaluations
$200+ 2
$100-199 2
$50-99 12
$25-49 56
< $25 757
Not specified 419

What people switch to and from

Patients started taking Levothyroxine after stopping:

Treatment Patients
Desiccated thyroid (Armour Thyroid) 25
Levothyroxine (Synthroid) 9
Liothyronine (T3) (Cytomel) 5
Methimazole (Tapazole) 2
Antidepressants 1

Show all 10 treatments patients report switching from

Patients stopped taking Levothyroxine and switched to:

Treatment Patients
Desiccated thyroid (Armour Thyroid) 55
Levothyroxine (Synthroid) 8
Liothyronine (T3) (Cytomel) 5
Amitriptyline (Elavil) 1
Duloxetine (Cymbalta) 1

Show all 10 treatments patients report switching to

Last updated:

93 patient evaluations for Levothyroxine

Feb 21, 2018 (Started Jun 15, 2016)

  • Effectiveness
    Major (for hypothyroidism)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 0.025 mg Daily

  • 0 helpful marks

Aug 13, 2017 (Started May 27, 2017)

  • Effectiveness
    Slight (for Hashimoto's thyroiditis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 0.125 mg Daily
Advice & Tips: My TSH is Still elevated, but my T4 is in the normal range. I don't think it is making things worse like the Synthetic Generic Levothyroxine I took back in? I don't feel much different from the NDT Armour.
Cost: < $25 monthly

  • 0 helpful marks

Jan 23, 2017 (Started Jun 02, 2004)

  • Effectiveness
    None (for Hashimoto's thyroiditis)
  • Side effects
    Moderate (weight gain)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 150 mcg (0.15 mg) Daily
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 93 patient evaluations for Levothyroxine