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What Factors Affect Dilantin® Dosage?

By Madeleine A.
Updated May 17, 2024
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Factors that affect a Dilantin® dosage include a patient's weight and age, any existing medical conditions he has and other medications he's taking. Other factors affecting a Dilantin® dosage include the amount of Dilantin&reg that is circulating in the patient's blood and how the medication affects the individual. The standard starting Dilantin® dosage is 100 mg three times daily or 300 mg once per day. The typical Dilantin® dosage for chewable tablets is generally 125 mg taken three times day.

Periodic blood tests are typically used to measure Dilantin&reg levels in the blood. A doctor can adjust the Dilantin® dosage based on the results of these blood tests. Dilantin&reg is used in the treatment of certain seizures in epilepsy patients. This condition occurs when sudden short changes in the electrical system of the brain happen. In addition, seizures can occur as an isolated incident or can occur many times throughout the day.

Sometimes, the cause of epilepsy or seizures is not known. Conditions like a stroke, head trauma, or brain tumor also can cause seizures. In addition, genetics, drug and alcohol abuse, and a brain infection can cause seizures. Many different types of seizures are typically grouped together into two categories. These categories are generalized seizures and partial seizures.

Dilantin&reg is a commonly prescribed medication and most people taking it tolerate it well. Side effects, ranging from mild to severe, may sometimes develop, even at a low Dilantin® dosage. These include dizziness, slurred speech, problems with coordination, and abnormal movements of the eyes. Other side effects that can occur include nausea, vomiting, and gum problems.

Serious Dilantin&reg side effects are not common but they can occur. These include worsening of seizures, uncontrollable body movements, high blood sugar, and jaundice. Allergic reactions can also occur, such as swelling, hives, rash, and itching. When these occur, a doctor should be notified. If side effects become intolerable, the doctor may be able to either adjust the dosage or prescribe another anti-seizure medication.

Taking Dilantin&reg while pregnant may not be safe. This medication is classified as a Category D medication, which means it has been shown to pose risks to the fetus. A Category D medication can still be prescribed to a pregnant woman, providing the physician believes the benefits outweigh the risks to the woman and the unborn baby. Dilantin&reg may also not be safe for breastfeeding women to take because the medication may pass through to breast milk to the newborn.

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.

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