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Home > Community Treatment Reports > Avonex Prefilled Syringe (interferon beta-1a im injection) Treatment Report
What is Avonex Prefilled Syringe?

Avonex® Prefilled Syringe is a brand name for the drug interferon beta-1a, used to treat relapsing forms of multiple sclerosis (MS). It is taken as an intramuscular injection and is available in pre-filled syringes.

Side Effects

Side effects as an overall problem

Severe
15 14%
Moderate
50 46%
Mild
35 32%
None
9 8%

Most commonly reported side effects

general muscle achiness
71 65%
Flu-like symptoms
70 64%
tiredness
60 55%
Chills/fever
54 50%
Body Aches
52 48%
shivering
34 31%
  • Mild
  • Moderate
  • Severe

Dosages

Top 10 dosages based on patients currently taking Avonex Prefilled Syringe. See all 11 dosages ►

  weekly 0.25 mg weekly 0.25 mL weekly 1 mL weekly 1 other weekly 30 mcg/0.5 mL weekly 15 mcg weekly 22 mcg/0.5 mL weekly 30 mcg/0.5 mL weekly 30 mcg weekly 30 mcg/0.5 mL daily
  1 Number of Patients: 1 1 Number of Patients: 1 1 Number of Patients: 1 1 Number of Patients: 1 2 Number of Patients: 2 1 Number of Patients: 1 1 Number of Patients: 1 1 Number of Patients: 1 195 Number of Patients: 195 2 Number of Patients: 2 27 Number of Patients: 27  

Stop Reasons

Why Patients Stopped Taking Avonex Prefilled Syringe (multiple reasons could be selected)
Reason # Patients Percentage of patients
Side effects too severe
33 43% Side effects too severe: 43%
Did not seem to work
30 39% Did not seem to work: 39%
Doctor's advice
28 37% Doctor's advice: 37%
Other
9 12% Other: 12%
Course of treatment ended
2 3% Course of treatment ended: 3%
Expense
1 1% Expense: 1%
Not indicated
1 1% Not indicated: 1%

See all 72 patients who’ve stopped taking Avonex Prefilled Syringe

Duration See details about how long patients take this treatment ▼

Currently Taking Avonex Prefilled Syringe

0-1 month 1-3 months 3-6 months 6 months-1year 1-2 years 2 years or more
3
13
22
39
22
76

Stopped Taking Avonex Prefilled Syringe

0-1 month 1-3 months 3-6 months 6 months-1year 1-2 years 2 years or more
3
8
6
14
11
28

Adherence, Burden & Cost See details from patient evaluations ▼

Adherence

Taking treatment as prescribed

Always
93 85%
Usually
15 14%
Sometimes
0 0%
Never
1 1%

Burden

Difficulty being on treatment

Very
11 10%
Somewhat
33 30%
A little
35 32%
Not at all
30 28%

Cost

Paid out of pocket

$200+
5 5%
$100-199
6 6%
$50-99
11 10%
$25-49
15 14%
< $25
38 35%

See more information, including instructions, precautions, side effects, and interactions.

Report created on November 21, 2009.