We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What Factors Affect Phenobarbital Dosage?

Mary McMahon
Updated May 17, 2024
Our promise to you
WiseGEEK is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WiseGEEK, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Phenobarbital dosage depends on the reason for prescribing the medication, the patient's health, and how well the patient responds to the drug. It is a potent central nervous system depressant, and doctors usually start with a low dose and slowly titer up to find the point where it will be effective for the patient, and the risk of side effects is as low as it can be. It can require several weeks to find the appropriate dosage, and it is important to take the medication as directed. Patients should avoid taking extra doses or abruptly stopping.

Doctors may prescribe phenobarbital for the treatment of seizures and insomnia. They can also use it as a sedative. Doses are usually given in milligrams; a typical adult can take between 50 and 100 milligrams per day for seizures, for example, or 30-120 to achieve a state of sedation. In cases where the drug is prescribed for animals, it is usually used for seizures, and the veterinarian may prescribe grains rather than milligrams, a different system of measurement. Patients should always ask which measuring system is being used to make sure they get the dosage right.

Older patients need a lower phenobarbital dosage because they are more sensitive to the drug. Likewise patients who have liver and kidney disease, as they are less capable of metabolizing it and could experience complications if they receive too much. For children, phenobarbital dosage also includes a weight component, as children are much smaller than adults and can run a gamut of sizes, making weight a more critical aspect of dosing to prevent overdoses.

If a patient does not respond to a low dose, the doctor can gradually increase it until the patient starts to experience relief. The end phenobarbital dosage may remain fairly stable once the patient's medical problem is under control. In some cases, patients develop a tolerance and may need to increase their dosage to get the same effect. If the medication appears to be less effective over time, patients should discuss it with their doctors.

When determining phenobarbital dosage, a doctor will consider medical history. Patients could be taking other medications that might interact and complicate the way phenobarbital works in the body. They could also be at increased risk of side effects or severe reactions on the basis of personal or family medical history, and this must be considered when making dosage decisions.

WiseGEEK is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a WiseGEEK researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments

Mary McMahon

Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

Read more
WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.

WiseGEEK, in your inbox

Our latest articles, guides, and more, delivered daily.