What is Levothyroxine?

Category: Prescription Drugs

Most popular types: Synthroid Levoxyl Thyroxine 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 2,993 945
Hashimoto's thyroiditis 497 195
General health 144 19
Thyroid cancer 96 19
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
94
Mild
113
None
971

Commonly reported side effects and conditions associated with Levothyroxine

Side effect Patients
Fatigue 31
Hair loss 25
Weight gain 24
Headaches 15
Heart palpitations 12
Nausea 11

Show all 190 reported side effects

Dosages

Based on patients currently taking Levothyroxine

Dosage Patients
50 mcg (0.05 mg) daily 75
0.1 mg daily 60
100 mcg (0.1 mg) daily 57
0.075 mg daily 56
0.05 mg daily 50
75 mcg (0.075 mg) daily 49
0.125 mg daily 45
0.025 mg daily 40
0.088 mg daily 37
25 mcg (0.025 mg) daily 33

See all 104 dosages

Why patients stopped taking Levothyroxine

Multiple reasons could be selected

Reason Patients
Did not seem to work 91
Doctor's advice 75
Other 65
Side effects too severe 49
Personal research 43
Course of treatment ended 19
Change in health plan coverage 18
Expense 12
See all 283 patients who've stopped taking Levothyroxine

Duration

Currently taking Levothyroxine

Duration Patients
Less than 1 month 2
1 - 6 months 15
6 months - 1 year 38
1 - 2 years 62
2 - 5 years 148
5 - 10 years 240
10 years or more 422

Stopped taking Levothyroxine

Duration Patients
Less than 1 month 25
1 - 6 months 53
6 months - 1 year 38
1 - 2 years 34
2 - 5 years 49
5 - 10 years 41
10 years or more 51
Adherence
Adherence Evaluations
Always 1045
Usually 139
Sometimes 8
Never taken as prescribed 26
Burden
Burden Evaluations
Very hard to take 22
Somewhat hard to take 82
A little hard to take 182
Not at all hard to take 932
Cost per month
Cost per month Evaluations
$200+ 2
$100-199 2
$50-99 12
$25-49 56
< $25 736
Not specified 410

What people switch to and from

Patients started taking Levothyroxine after stopping:

Treatment Patients
Desiccated thyroid (Armour Thyroid) 23
Levothyroxine (Synthroid) 9
Liothyronine (T3) (Cytomel) 5
Antidepressants 1
Carbimazole 1

Show all 10 treatments patients report switching from

Patients stopped taking Levothyroxine and switched to:

Treatment Patients
Desiccated thyroid (Armour Thyroid) 54
Levothyroxine (Synthroid) 8
Liothyronine (T3) (Cytomel) 4
Amitriptyline (Elavil) 1
Duloxetine (Cymbalta) 1

Show all 10 treatments patients report switching to

Last updated:

92 patient evaluations for Levothyroxine

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: 1 mcg Daily
Cost: < $25 monthly

  • 0 helpful marks

Jan 3, 2017 (Started Aug 10, 1996)

  • Effectiveness
    Major (for General health)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 0.125 mg Daily
Cost: $100-199 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 92 patient evaluations for Levothyroxine