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 3,039 982
Hashimoto's thyroiditis 507 203
General health 144 19
Thyroid cancer 100 20
Fatigue 35 18

Show all 86 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 39
Moderate 97
Mild 114
None 1,014

Commonly reported side effects and conditions associated with Levothyroxine

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

Show all 185 reported side effects

Dosages

Based on patients currently taking Levothyroxine

Dosage Patients
50 mcg (0.05 mg) daily 87
0.075 mg daily 66
100 mcg (0.1 mg) daily 64
0.1 mg daily 62
0.05 mg daily 52
75 mcg (0.075 mg) daily 49
0.025 mg daily 48
0.125 mg daily 45
0.088 mg daily 39
25 mcg (0.025 mg) daily 30

See all 116 dosages

Why patients stopped taking Levothyroxine

Multiple reasons could be selected

Reason Patients
Did not seem to work 96
Doctor's advice 77
Other 68
Side effects too severe 50
Personal research 43
Change in health plan coverage 18
Course of treatment ended 18
Expense 12
See all 289 patients who've stopped taking Levothyroxine

Duration

Currently taking Levothyroxine

Duration Patients
Less than 1 month 2
1 - 6 months 10
6 months - 1 year 34
1 - 2 years 60
2 - 5 years 144
5 - 10 years 265
10 years or more 461

Stopped taking Levothyroxine

Duration Patients
Less than 1 month 25
1 - 6 months 53
6 months - 1 year 39
1 - 2 years 34
2 - 5 years 50
5 - 10 years 44
10 years or more 53
Adherence
Adherence Evaluations
Always 1088
Usually 141
Sometimes 8
Never taken as prescribed 27
Burden
Burden Evaluations
Very hard to take 22
Somewhat hard to take 86
A little hard to take 186
Not at all hard to take 970
Cost per month
Cost per month Evaluations
$200+ 2
$100-199 2
$50-99 13
$25-49 56
< $25 766
Not specified 425

What people switch to and from

Patients started taking Levothyroxine after stopping:

Treatment Patients
Desiccated thyroid (Armour Thyroid) 26
Levothyroxine (Synthroid) 8
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) 54
Levothyroxine (Synthroid) 7
Liothyronine (T3) (Cytomel) 6
Amitriptyline (Elavil) 1
Duloxetine (Cymbalta) 1

Show all 10 treatments patients report switching to

Last updated:

94 patient evaluations for Levothyroxine

May 26, 2018 (Started Feb 06, 2009)

  • Effectiveness
    Moderate (for hypothyroidism)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 50 mcg (0.05 mg) Daily
Advice & Tips: Everything seems to be going fine.
Cost: < $25 monthly

Aug 11, 2015 (Started Feb 06, 2009)

  • Effectiveness
    Moderate (for hypothyroidism)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 50 mcg (0.05 mg) Daily
Advice & Tips: HAVEN'T NOTICED ANYTHING DIFFERENT.
Cost: < $25 monthly

Aug 16, 2014 (Started Feb 06, 2009)

  • Effectiveness
    Moderate (for hypothyroidism)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 50 mcg (0.05 mg) Daily
Advice & Tips: I have just started to have some changes in my blood work concerning my thyroid; but nothing major.

Jul 14, 2012 (Started Feb 06, 2009)

  • Effectiveness
    Moderate (for hypothyroidism)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 50 mcg (0.05 mg) Daily

  • 0 helpful marks

Apr 29, 2018 (Started May 18, 2007)

  • Effectiveness
    Major (for hypothyroidism)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 137 mg Daily

  • 0 helpful marks

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
Last updated:
Showing 3 of 94 patient evaluations for Levothyroxine