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Active pharmaceutical ingredient

Phenytoin

Phenytoin is a well-established active pharmaceutical ingredient primarily used in the management of seizure disorders, particularly epilepsy.

Compounded to order
Prescription required
Warwick, Rhode Island

About this ingredient

Phenytoin is a well-established active pharmaceutical ingredient primarily used in the management of seizure disorders, particularly epilepsy. It functions as an anticonvulsant by stabilizing neuronal membranes and reducing repetitive neuronal firing, which helps in controlling seizures. This mechanism of action makes it a critical component in formulations aimed at providing effective seizure control for patients with epilepsy.

In addition to its anticonvulsant properties, phenytoin is also utilized in the treatment of certain types of arrhythmias, showcasing its versatility in addressing neurological and cardiac conditions. Its pharmacokinetic profile is characterized by a narrow therapeutic index, necessitating careful monitoring of blood levels to ensure efficacy while minimizing potential toxicity. This aspect underscores the importance of personalized dosing regimens in compounded formulations containing phenytoin.

Phenytoin's efficacy and safety profile have been extensively studied, making it a reliable choice for prescribers seeking to manage complex seizure disorders. However, it is crucial for healthcare providers to be aware of potential drug interactions and side effects, such as gingival hyperplasia, hirsutism, and potential teratogenic effects, to optimize patient outcomes. Compounded formulations of phenytoin can offer tailored dosing options, enhancing patient adherence and therapeutic success.

Available formulations

Compounded formulations containing this ingredient

Each of these is compounded to order at our Warwick, Rhode Island pharmacy and requires a prescription.

We do not have a patient page for this ingredient yet. That does not mean we cannot make it. Bayview compounds this ingredient to a prescriber's order, and our full compounding formulary lists every preparation we make. Viewing the formulary requires a prescriber account.

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Compounding formulary

Formulas we compound with this ingredient

A sample of preparations from our formulary. Strengths and dose forms are customised to the prescription.

Common questions

Frequently asked questions

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Related

Related active ingredients

Other salt forms of this molecule, and ingredients commonly compounded alongside it.

Important information

This page describes an active pharmaceutical ingredient, not a finished drug product. Bayview Pharmacy compounds preparations containing it only on a prescriber's order for an individual patient.

Compounded preparations are not FDA-approved, and the FDA has not evaluated them for safety, effectiveness, or manufacturing quality. Nothing on this page is a claim that any preparation is effective for any condition.

A valid prescription is required. Availability depends on Bayview's licensure in your state. This page is general information, not medical advice — discuss your situation with a licensed healthcare provider.

Talk to a compounding pharmacist

Our pharmacists work with prescribers to build preparations around a patient's dose, form and tolerances. Ask us what is possible with this ingredient.