What is Ondansetron?

Category: Prescription Drugs

Most popular types: Zofran Zofran ODT Novo-Ondansetron Show all

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Ondansetron is an antiemtic drug used to prevent nausea and vomiting following chemotherapy, radiation therapy, or surgery.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Nausea 258 89
Nausea and vomiting 209 75
Gastroparesis 20 8
Kidney stone 17 10
Migraine headaches 9 2
Vomiting 9 2

Show all 54 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 6
Moderate 12
Mild 33
None 113

Commonly reported side effects and conditions associated with Ondansetron

Side effect Patients
Constipation 10
Headaches 9
Drowsiness 6
Dizziness 3
Sleepiness 3
Dry mouth 2

Show all 28 reported side effects

Dosages

Based on patients currently taking Ondansetron

Dosage Patients
4mg as needed 56
8mg as needed 28
4 mg twice daily 6
4 mg three times daily 5
8 mg three times daily 4
4 mg daily 3
8 mg daily 3
4 mg four times daily 3
16 mg daily 2
8 mg twice daily 2

See all 23 dosages

Why patients stopped taking Ondansetron

Multiple reasons could be selected

Reason Patients
Course of treatment ended 35
Other 27
Did not seem to work 20
Doctor's advice 14
Side effects too severe 11
Change in health plan coverage 7
Expense 6
Personal research 1
See all 102 patients who’ve stopped taking Ondansetron

Duration

Currently taking Ondansetron

Duration Patients
Less than 1 month 2
1 - 6 months 11
6 months - 1 year 16
1 - 2 years 14
2 - 5 years 47
5 - 10 years 23
10 years or more 8

Stopped taking Ondansetron

Duration Patients
Less than 1 month 39
1 - 6 months 28
6 months - 1 year 9
1 - 2 years 12
2 - 5 years 12
5 - 10 years 4
10 years or more 2
Adherence
Adherence Evaluations
Always 115
Usually 29
Sometimes 17
Never taken as prescribed 3
Burden
Burden Evaluations
Very hard to take 3
Somewhat hard to take 9
A little hard to take 13
Not at all hard to take 139
Cost per month
Cost per month Evaluations
$200+ 1
$100-199 3
$50-99 2
$25-49 16
< $25 59
Not specified 83

What people switch to and from

Patients started taking Ondansetron after stopping:

Treatment Patients
Promethazine (Phenergan) 21
Metoclopramide (Reglan) 5
Prochlorperazine (Compazine) 3
Domperidone (Motilium) 1
Erythromycin (Ery-Tab) 1

Show all 7 treatments patients report switching from

Patients stopped taking Ondansetron and switched to:

Treatment Patients
Promethazine (Phenergan) 9
Metoclopramide (Reglan) 2
Hyoscyamine (Levsin) 1
Lorazepam (Ativan) 1
Medical marijuana (Cannabidiol/Tetrahydrocannabinol Balanced Mixture) 1

Show all 6 treatments patients report switching to

Last updated:

13 patient evaluations for Ondansetron

134 members have decided to share their profiles only with other members of PatientsLikeMe.

ChronicWarrior
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ChronicWarrior
Data Quality: 2 stars
  • Gender: F
  • Age: 48
Condition: Brain Tumor 13 additional condition(s)
Quality of life:
  • Mental: Severe
  • Physical: Moderate
I am: b
I have:
Brain Tumor

See ChronicWarrior's full Ondansetron history

Sep 16, 2016 (Started Aug 15, 2014)

  • Effectiveness
    Major (for Nausea and vomiting)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: As needed

  • 0 helpful marks
25yrRA
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25yrRA
Data Quality: 1 star
  • Gender: F
  • Age: 55
Condition: Rheumatoid Arthritis (RA) 20 additional condition(s)
Quality of life:
  • Mental: Mild
  • Physical: Mild
I am: n
I have:
Rheumatoid Arthritis (RA)

See 25yrRA's full Ondansetron history

Aug 21, 2016 (Started Jan 15, 2016)

  • Effectiveness
    Major (for Nausea)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: As needed
Advice & Tips: Generic Zofran ODT is the best stomach treatment I have found. When nothing else works, this one does.
Cost: < $25 monthly

  • 0 helpful marks
tigger13039
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tigger13039
Sex: M
Data Quality: 3 stars
Sensation: Moderate
Overall: Mild
Cognition: moderate
Vision: mild
Speech: moderate
Swallowing: mild
Upper limb: mild
Walking: moderate
I am: g
I have:
MS

See tigger13039's full Ondansetron history

Dec 1, 2015 (Started Jun 02, 2011)

  • Effectiveness
    Moderate (for Nausea and vomiting)
  • Effectiveness
    Moderate (for Nausea)
  • Effectiveness
    Moderate (for Multiple Sclerosis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: As needed
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 13 patient evaluations for Ondansetron