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Phenbarb, a prescription drug, is manufactured in various forms such as Tablet. It is primarily used for the treatment of Epilepsy, Seizures. Other than this, Phenbarb has some other therapeutic uses, which have been discussed ahead.
The correct dosage of Phenbarb depends on the patient's age, gender, and medical history. The condition it has been prescribed for, and the route of administration also determine the right dosage. Refer to the dosage section for a detailed discussion.
The most common side effects of Phenbarb are Vertigo, Double Vision. Besides the aforementioned side effects, there are other adverse effects of Phenbarb as well, which are listed below. Usually, these side effects of Phenbarb go away soon, and do not persist beyond the duration of the treatment. Please speak with your doctor if these side effects worsen or persist for a longer duration.
In addition, Phenbarb's effect is Severe during pregnancy and Moderate for lactating mothers. In addition, Phenbarb's effects on the liver, heart and kidney are discussed below in the Phenbarb related warnings section.
Phenbarb is not recommended if you suffer from certain medical conditions as it can have adverse effects. Bradycardia (Slow Heart Rate), Respiratory Depression, Liver Disease are examples of such conditions. The section on Phenbarb contraindications lists all such conditions.
Drug interactions for Phenbarb have been reported in the medical literature. See below for a complete list.
In addition to these precautions, you may also note that Phenbarb is not safe while driving, and is is not addictive in nature.
Phenbarb is used to treat the following -
Other Benefits
This is the usual dosage recommended in most common treatment cases. Please remember that every patient and their case is different, so the dosage can be different based on the disease, route of administration, patient's age and medical history.
Find the right dosage based on disease and age
Age Group | Dosage |
Is the use of Phenbarb safe for pregnant women?
Phenbarb can cause severe side effects if taken during pregnancy, so, pregnant women should talk to their doctor before taking it.
Is the use of Phenbarb safe during breastfeeding?
Breastfeeding women may feel side effects of Phenbarb. If you see any side effects, stop taking Phenbarb immediately and talk to your doctor. Take Phenbarb again, only after your doctor's advice.
What is the effect of Phenbarb on the Kidneys?
Phenbarb has very mild side effects on the kidneys.
What is the effect of Phenbarb on the Liver?
Phenbarb has very mild side effects on the liver.
What is the effect of Phenbarb on the Heart?
Phenbarb may have mild side effects on the heart. Most people will never see any effect on the heart.
Phenbarb should not be taken with following medicines due to severe side effects it may cause to patients -
Severe
Moderate
Mild
If you are suffering from any of the following diseases, you should not take Phenbarb unless your doctor advises you to do so -
Is this Phenbarb habit forming or addictive?
No, you will not get addicted to Phenbarb.
Interaction between Food and Phenbarb
Taking Phenbarb with food can create severe side effects. Discuss this with your doctor.
Interaction between Alcohol and Phenbarb
Consuming Phenbarb with alcohol can have many serious effects on your body.
No, Phenbarb does not cause weight gain. It has not been reported by the patients who are taking this drug. Hence, there is no direct association between weight gain and Phenbarb till now.
Yes, Phenbarb can help with anxiety or tension because it can induce sleep but it is generally not preferred for the treatment of anxiety due to its side effects.
Yes, Phenbarb can cause constipation in a few cases only. It is an uncommon side effect of this drug. The exact cause behind it is unknown. If you are experiencing constipation after taking this drug then try to take laxative such as Isabgol and eat less spicy highly fibrous food.
Yes, Phenbarb might help with severe alcohol withdrawal symptoms. Scientific evidence suggests that Phenbarb in combination with other drugs (benzodiazepines) might help with severe alcohol withdrawal symptoms. Since it is a prescription drug, you are advised not to take Phenbarb by yourself without consulting a doctor.
No, Phenbarb should not be taken with benadryl. Taking these drugs together is more likely to increases the sedative (drowsiness) effect. Hence, you are advised to avoid taking them together.
This medicine data has been created by -
B.Pharma, Pharmacy
5 Years of Experience
References
April Hazard Vallerand, Cynthia A. Sanoski. [link]. Sixteenth Edition. Philadelphia, China: F. A. Davis Company; 2019: Page No 85-87
US Food and Drug Administration (FDA) [Internet]. Maryland. USA; Package leaflet information for the user; Dilantin® (Phenytoin Sodium)
KD Tripathi. [link]. Seventh Edition. New Delhi, India: Jaypee Brothers Medical Publishers; 2013: Page No 413-415