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What is Promethazine?

Promethazine is an antiemetic and antihistamine. It is used to relieve the symptoms of allergic reactions, nausea, motion sickness. It is also use as a sedative, as adjunctive therapy for postoperative pain, anesthetic and anaphylactic reactions.

Reported Purpose & Efficacy

Reasons and Efficacy
Purpose # of patients
# of patients with evaluations Efficacy
Major
Moderate
Slight
None
Can’t tell
Nausea 157 29 Efficacy_major Efficacy_moderate Efficacy_slight Efficacy_none
Nausea and vomiting 67 19 Efficacy_major Efficacy_moderate
Migraine headaches 29 4 Efficacy_major Efficacy_moderate Efficacy_none
Other 23 3 Efficacy_major Efficacy_moderate
Gastroparesis 17 0
Nausea sometimes 12 3 Efficacy_major

See all 336 patients currently taking Promethazine

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Reported Side Effects

Side effects as an overall problem

Severe
 3
Moderate
 15
Mild
 26
None
 29

Commonly reported side effects, conditions, and hospitalizations associated with Promethazine

Drowsiness 16
Groggy in morning 3
Oversedation 2
Excessive daytime sleepiness (somnolence) 2
Sleepiness 2
Sedation 2
See all 23 reported side effects ▼ See top 6 reported side effects ▲

Reported Dosages

Frequently reported dosages based on patients currently taking Promethazine. See all 38 dosages ►

  25mg as needed 50mg/mL as needed 50mg as needed 25mg/mL as needed 12.5mg as needed 12.5 mg daily 25 mg daily 50 mg daily 75 mg daily 100 mg daily
  142 Number of Patients: 142 6 Number of Patients: 6 8 Number of Patients: 8 38 Number of Patients: 38 19 Number of Patients: 19 6 Number of Patients: 6 38 Number of Patients: 38 26 Number of Patients: 26 10 Number of Patients: 10 13 Number of Patients: 13  

Reported Stop Reasons

Why Patients Stopped Taking Promethazine (multiple reasons could be selected)
Reason # Patients Percentage of patients
Course of treatment ended 20   Course of treatment ended: 33%
Other 14   Other: 23%
Doctor's advice 14   Doctor's advice: 23%
Side effects too severe 9   Side effects too severe: 15%
Did not seem to work 8   Did not seem to work: 13%
Expense 1   Expense: 2%
Change in health plan coverage 1   Change in health plan coverage: 2%

See all 59 patients who’ve stopped taking Promethazine

Reported Duration See details about how long patients take this treatment ▼

Currently Taking Promethazine

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0-1 month 1-3 months 3-6 months 6 months-1year 1-2 years 2 years or more
0

Stopped Taking Promethazine

A bar graph

0-1 month 1-3 months 3-6 months 6 months-1year 1-2 years 2 years or more

Reported Adherence, Burden & Cost See details from patient evaluations ▼

Adherence

Taking treatment as prescribed

Adherence of Promethazine

Always
 48 66%
Usually
 15 21%
Sometimes
 9 12%
Never
 1 1%

Burden

Difficulty being on treatment

Burden of Promethazine

Very
 2 3%
Somewhat
 3 4%
A little
 10 14%
Not at all
 58 79%

Cost

Paid out of pocket

Cost of Promethazine

$200+
 0 0%
$100-199
 0 0%
$50-99
 0 0%
$25-49
 1 2%
< $25
 42 98%

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

Report created on May 24, 2012.