What is Phenobarbital?

Category: Prescription Drugs

Most popular types: Luminal Phenobarbitalum

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Phenobarbital, a barbiturate, is used to control epilepsy (seizures) and as a sedative to relieve anxiety. It is also used for short-term treatment of insomnia to help you fall asleep.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Epilepsy 76 40
Seizures 14 3
Seizures (simple partial) 10 4
Seizures (grand mal or tonic-clonic) 3 2
Anxious mood 1 0
Excessive daytime sleepiness (somnolence) 1 0

Show all 14 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 9
Moderate 13
Mild 13
None 13

Commonly reported side effects and conditions associated with Phenobarbital

Side effect Patients
Drowsiness 5
Sleepiness 4
Tiredness 4
Dizziness 2
Excessive daytime sleepiness (somnolence) 2
Problems concentrating 2

Show all 21 reported side effects

Dosages

Based on patients currently taking Phenobarbital

Dosage Patients
45 mg daily 1
60 mg daily 1
99 mg daily 1
450 mcg daily 1
4,500 mg daily 1

Why patients stopped taking Phenobarbital

Multiple reasons could be selected

Reason Patients
Doctor's advice 20
Did not seem to work 18
Side effects too severe 14
Other 5
Course of treatment ended 4
Change in health plan coverage 2
Expense 1
Personal research 1
See all 39 patients who've stopped taking Phenobarbital

Duration

Currently taking Phenobarbital

Duration Patients
2 - 5 years 1
10 years or more 4

Stopped taking Phenobarbital

Duration Patients
Less than 1 month 4
1 - 6 months 6
6 months - 1 year 1
1 - 2 years 1
2 - 5 years 11
5 - 10 years 6
10 years or more 10
Adherence
Adherence Evaluations
Always 41
Usually 7
Sometimes 0
Never taken as prescribed 0
Burden
Burden Evaluations
Very hard to take 2
Somewhat hard to take 3
A little hard to take 8
Not at all hard to take 35
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 0
$25-49 1
< $25 35
Not specified 12

What people switch to and from

Patients started taking Phenobarbital after stopping:

Treatment Patients
Carbamazepine (Tegretol) 1
Phenytoin (Dilantin) 1

Patients stopped taking Phenobarbital and switched to:

Treatment Patients
Carbamazepine (Tegretol) 3
Phenytoin (Dilantin) 2
Divalproex sodium (Depakote) 1
Ethosuximide (Zarontin) 1
Gabapentin (Neurontin) 1

Show all 6 treatments patients report switching to

Last updated:

4 patient evaluations for Phenobarbital

Nov 28, 2010 (Started Jan 10, 2010)

  • Effectiveness
    Can't tell (for epilepsy)
  • Side effects
    Mild (dizziness)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 2.5 other Daily
Advice & Tips: Sometimes it seems to make me high, lasts a few hours.
Cost: < $25 monthly
Side effects: dizziness

  • 0 helpful marks

May 4, 2010 (Started Jul 25, 1989)

  • Effectiveness
    Major (for epilepsy)
  • Side effects
    Mild (sleepiness)
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 200 mg Daily
Advice & Tips: phnobarbitola is a tried and true med for grand mal seizures and its inexpenssive if you become unemployed as i have. im used to taking this med..it made me tired at first but have adjusted the many years i have been on it.
Cost: < $25 monthly
Side effects: sleepiness

  • 0 helpful marks

Apr 12, 2009 (Started Jan 01, 1984)

  • Effectiveness
    Moderate (for epilepsy)
  • Side effects
    Moderate (excessive daytime sleepiness (somnolence))
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 120 mg Daily
Cost: < $25 monthly
Side effects: excessive daytime sleepiness (somnolence)

  • 0 helpful marks
Last updated:
Showing 3 of 4 patient evaluations for Phenobarbital