What is Metformin?

Category: Prescription Drugs

Most popular types: Metformin ER Glucophage Diabex Show all

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Metformin an antidiabetic agent used for the management of type 2 diabetes mellitus (noninsulin dependent, NIDDM) as monotherapy when hyperglycemia (high blood sugar) cannot be managed with diet and exercise alone.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Diabetes type 2 2743 1003
Polycystic ovary syndrome 279 115
Prediabetes 128 71
Elevated blood sugar (hyperglycemia) 27 53
Insulin resistance 22 8

Show all 62 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 Percentage
Severe 144
Moderate 188
Mild 236
None 609

Commonly reported side effects and conditions associated with Metformin

Side effect Patients Percentage
Diarrhea 205
Nausea 71
Stomach pain 33
Loose bowel movements 20
Low blood sugar (hypoglycemia) 13
Weight gain 12

Show all 148 reported side effects

Dosages

Based on patients currently taking Metformin

Dosage Patients Percentage
500 mg twice daily 68
500 mg daily 52
1000 mg twice daily 42
1000 mg daily 32
1,000 mg twice daily 29
2000 mg daily 21
500 mg three times daily 9
1500 mg daily 6
850 mg twice daily 6
850 mg daily 4

See all 41 dosages

Why patients stopped taking Metformin

Multiple reasons could be selected

Reason Patients Percentage
Side effects too severe 212
Doctor's advice 186
Did not seem to work 104
Other 79
Course of treatment ended 51
Personal research 19
Change in health plan coverage 13
Expense 9
See all 503 patients who've stopped taking Metformin

Duration

Currently taking Metformin

Duration Patients Percentage
Less than 1 month 1
1 - 6 months 8
6 months - 1 year 11
1 - 2 years 21
2 - 5 years 93
5 - 10 years 94
10 years or more 95

Stopped taking Metformin

Duration Patients Percentage
Less than 1 month 78
1 - 6 months 93
6 months - 1 year 48
1 - 2 years 65
2 - 5 years 112
5 - 10 years 73
10 years or more 39
Adherence
Adherence Evaluations Percentage
Always 849
Usually 217
Sometimes 33
Never taken as prescribed 78
Burden
Burden Evaluations Percentage
Very hard to take 72
Somewhat hard to take 112
A little hard to take 221
Not at all hard to take 772
Cost per month
Cost per month Evaluations Percentage
$200+ 8
$100-199 6
$50-99 9
$25-49 39
< $25 619
Not specified 496

What people switch to and from

Patients started taking Metformin after stopping:

Treatment Patients Percentage
Glipizide (Glipizide ER) 9
Glimepiride (Amaryl) 6
Glyburide (Glynase PresTab) 6
Insulin Glargine (Lantus) 6
Sitagliptin (Januvia) 5

Show all 21 treatments patients report switching from

Patients stopped taking Metformin and switched to:

Treatment Patients Percentage
Glipizide (Glipizide ER) 19
Insulin Glargine (Lantus) 16
Glimepiride (Amaryl) 15
Sitagliptin-metformin (Janumet) 13
Sitagliptin (Januvia) 11

Show all 33 treatments patients report switching to

Last updated:

58 patient evaluations for Metformin

Oct 25, 2017 (Started Jan 01, 2013)

  • Effectiveness
    Can't tell (for diabetes type 2)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1,000 mg Daily
Advice & Tips: I can't tell if the Metformin helps or not.
Cost: < $25 monthly

  • 0 helpful marks

May 14, 2017 (Started Jul 01, 2008)

  • Effectiveness
    Can't tell (for polycystic ovary syndrome)
  • Side effects
    Moderate (diarrhea)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1000 mg Daily
Cost: < $25 monthly

Aug 20, 2015 (Started Jul 01, 2008)

  • Effectiveness
    Major (for polycystic ovary syndrome)
  • Side effects
    Mild (diarrhea)
  • Adherence
    Usually
  • Burden
    A little hard to take
Dosage: 1000 mg Daily
Cost: < $25 monthly

Jul 11, 2013 (Started Jul 01, 2008)

  • Effectiveness
    Major (for polycystic ovary syndrome)
  • Side effects
    Moderate (diarrhea)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1000 mg Daily
Cost: < $25 monthly

May 8, 2013 (Started Jul 01, 2008)

  • Effectiveness
    Major (for polycystic ovary syndrome)
  • Side effects
    Moderate (diarrhea)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1000 mg Daily
Advice & Tips: Take with a substantial meal.
Cost: < $25 monthly

Jan 11, 2012 (Started Jul 01, 2008)

  • Effectiveness
    Moderate (for polycystic ovary syndrome)
  • Side effects
    Mild (diarrhea)
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 1000 mg Daily
Cost: < $25 monthly

  • 0 helpful marks

Jan 18, 2017 (Started Jul 01, 2004)

  • Effectiveness
    Major (for diabetes type 2)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 2000 mg Daily
Advice & Tips: Advice don't stop this medication just because you can't afford it. Find a way. I did this and my A1c went from 6.7 to 8.4. So my doctor put me on a higher dose. So far my history of blood sugar results keep low and consistent.

  • 0 helpful marks
Last updated:
Showing 3 of 58 patient evaluations for Metformin