What is Tamoxifen?

Category: Prescription Drugs

Most popular types: Nolvadex Tamoxol Istubal Show all

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Tamoxifen is an oral selective estrogen receptor modulator which is used in breast cancer treatment, and is currently the world's largest selling breast cancer treatment. It is used for the treatment of early and advanced breast cancer. It is undergoing trials in ALS/MND under Prof Ben Brooks.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Breast cancer 77 35
Amyotrophic lateral sclerosis 16 7
Atypical hyperplasia of breast 4 3
Androgen deficiency 1 0
Gynecomastia 1 1

Show all 9 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 15
Moderate 14
Mild 13
None 11

Commonly reported side effects and conditions associated with Tamoxifen

Side effect Patients
Hot flashes 12
Fatigue 4
Night sweats 4
Weight gain 4
Brain fog 2
Cramps in feet 2

Show all 66 reported side effects

Dosages

Based on patients currently taking Tamoxifen

Dosage Patients
20 mg daily 19
10 mg daily 3
40 mg daily 1

Why patients stopped taking Tamoxifen

Multiple reasons could be selected

Reason Patients
Doctor's advice 10
Course of treatment ended 9
Side effects too severe 9
Other 7
Did not seem to work 6
Personal research 1
See all 36 patients who've stopped taking Tamoxifen

Duration

Currently taking Tamoxifen

Duration Patients
1 - 6 months 1
6 months - 1 year 2
1 - 2 years 4
2 - 5 years 7
5 - 10 years 9

Stopped taking Tamoxifen

Duration Patients
Less than 1 month 5
1 - 6 months 11
6 months - 1 year 5
1 - 2 years 3
2 - 5 years 11
5 - 10 years 1
Adherence
Adherence Evaluations
Always 48
Usually 4
Sometimes 0
Never taken as prescribed 1
Burden
Burden Evaluations
Very hard to take 5
Somewhat hard to take 10
A little hard to take 8
Not at all hard to take 30
Cost per month
Cost per month Evaluations
$200+ 1
$100-199 0
$50-99 2
$25-49 2
< $25 27
Not specified 21

What people switch to and from

Patients started taking Tamoxifen after stopping:

Treatment Patients
Chemotherapy 4

Patients stopped taking Tamoxifen and switched to:

Treatment Patients
Exemestane (Aromasin) 2
Letrozole (Femara) 2
Anastrozole (Arimidex) 1
Fareston 1
Fulvestrant (Faslodex) 1

Show all 6 treatments patients report switching to

Last updated:

2 patient evaluations for Tamoxifen

May 31, 2012 (Started Feb 29, 2012)

  • Effectiveness
    Major (for breast cancer)
  • Side effects
    Severe (reactivated uterine fibroids and they started necrotizing, necrotizing uterine fibroids)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 10 mg/5 mL Daily
Cost: < $25 monthly

  • 0 helpful marks

Apr 10, 2011 (Started Jan 01, 2010)

  • Effectiveness
    Slight (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Never taken as prescribed
  • Burden
    A little hard to take
Dosage: 10 mg/5 mL Daily
Cost: $50-99 monthly

  • 0 helpful marks
Last updated:
Showing 2 of 2 patient evaluations for Tamoxifen