Phenobarbitone
Uses of Phenobarbitone
Phenobarbitone helps control and prevent seizures in individuals suffering from epilepsy and belongs to an antiepileptic medication.
Besides this, the medicine also finds application in the management of generalized tonic-clonic seizures, partial seizures, and febrile seizures in children. It is sometimes also used for sedation, anxiety, and as a preoperative medication despite potential for dependence and side effects.
Side effects of Phenobarbitone
Sedation or drowsiness
Dizziness or loss of balance
Nausea or vomiting
Headache
Skin rashes
How Phenobarbitone works
Phenobarbitone is a medicine in the barbiturate category.
It operates by enhancing the function of gamma-aminobutyric acid (GABA), a neurotransmitter in your brain that curtails the excitability of nerve cells. GABA acts as a calming influence on the brain's nerve cells. By giving GABA a boost, Phenobarbitone helps stabilise the electrical activity in your brain, thus controlling and preventing seizures in epilepsy. It also increases the threshold at which seizures occur and restricts the spread of seizure activity within your brain. This is like putting up safety barriers to prevent seizures from taking over your brain.
Certified content
Written By
BDS, MDS
Reviewed By
Bachelor of Dental Surgery
Expert Advice
Dosage Forms Available
- Phenobarbitone is available in different formulations, including tablets, liquid, and injectable solutions.
Age and Dose Restrictions
- Phenobarbitone is intended for use in both adults and children.
Contraindications
- Phenobarbitone is contraindicated in patients with a known hypersensitivity to barbiturates. It should not be used in patients with severe respiratory disease, pulmonary insufficiency, or sleep apnea (a common breathing disorder that occurs during sleep).
Other Medications to Avoid
- Phenobarbitone may interact with other antiepileptics (e.g., phenytoin, carbamazepine, valproate), oral anticoagulants (e.g., warfarin, rivaroxaban), antibiotics (e.g., doxycycline, metronidazole), and anti-fungal medications (e.g., griseofulvin, clotrimazole).
Overdose and Missed Dose
- An overdose of Phenobarbitone may lead to severe sedation, confusion, difficulty breathing, and even coma. If you suspect an overdose, contact your doctor immediately or visit the nearest hospital.
- If you forget a dose of this medicine, take it as soon as you remember. However, if it is close to the time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not double the dose to catch up.
Management of Side Effects
Most side effects of Phenobarbitone are temporary and resolve on their own when the medicine is discontinued.
- If you have diabetes, alcohol dependence, liver disease, limit/avoid it in your diet as the liquid form of this product may contain alcohol or sugar.
Use in Driving and Operating Machinery
- Phenobarbitone may affect your ability to drive or operate heavy machinery due to its potential side effects like dizziness, drowsiness, or impaired coordination. Avoid such activities if you experience these symptoms after taking this medication.
Use in Pregnancy and Lactation
- Phenobarbitone is not recommended during pregnancy and breastfeeding.
Caution in Other Conditions
- Patients with liver or kidney dysfunction and bone disease should use Phenobarbitone with caution as it may require dose adjustment.
Special Dietary and Lifestyle Recommendations
- Limit caffeine intake.
Frequently asked questions
Is Phenobarbitone a steroid?
No, Phenobarbitone is not a steroid. It belongs to a class of medications known as barbiturates and is primarily used as an anticonvulsant to control and prevent epileptic seizures.
Will Phenobarbitone affect fertility?
The research data does not provide any specific information about the impact of Phenobarbitone on fertility. It is always advisable to consult with your doctor before starting any medication if you are planning to conceive.
How much time does Phenobarbitone take to work?
The onset of action of Phenobarbitone varies for each individual, but usually it begins to work soon after administration. It's crucial to follow your doctor's instructions regarding the dosage schedule.
What is the best time to take Phenobarbitone?
The best time to take Phenobarbitone should be directed by your doctor, who will consider your individual needs and response to treatment.
Does Phenobarbitone cause weight gain or loss?
No specific information is available regarding weight changes due to Phenobarbitone. However, if you experience drastic changes in your weight after starting this medication, you should consult your doctor.
Can the use of Phenobarbitone lead to mood changes?
Some patients may experience mood changes such as irritability, aggression, and hyperactivity while taking Phenobarbitone. If such changes are significant or affecting your daily life, seek medical help immediately.
Do I need to monitor blood levels while taking Phenobarbitone?
Yes, monitoring of Phenobarbitone blood levels is recommended to guide dosage adjustments and check compliance.
Phenobarbitone in other salts
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