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Dilantin Infatabs 50 mg Chewable Tablets
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$34.99
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Dilantin Infatabs is a prescription anti-seizure medicine used to help prevent certain types of seizures. This page explains how the chewable form fits into care, what to know about safety, and what to expect with monitoring. It also outlines access steps for people paying cash without insurance.
What Dilantin Infatabs Is and How It Works
US shipping from Canada may be offered through BorderFreeHealth’s cross-border referral model, depending on prescription and availability. Dilantin Infatabs contains phenytoin sodium, an anticonvulsant (anti-seizure medicine) that helps reduce abnormal electrical activity in the brain. Clinicians often describe its action as “stabilizing” nerve firing by affecting sodium channels, which can make repetitive firing less likely during seizure-prone activity.
Because phenytoin can behave differently across people, the same dose can lead to different blood levels. That is one reason monitoring and careful follow-up matter with this therapy. Orders are dispensed by licensed Canadian partner pharmacies.
Who It’s For
This medicine is prescribed for seizure control in selected seizure types, based on a clinician’s assessment and the official labeling. It is commonly used for generalized tonic-clonic seizures and complex partial seizures, and it may be used in other situations when a prescriber determines it is appropriate. For related condition hubs on the site, browse the Seizures Hub or the Status Epilepticus Hub (status epilepticus is a prolonged seizure emergency).
Phenytoin is not appropriate for everyone. It should not be used by people with a known allergy to phenytoin or related ingredients, and certain health histories can change whether it is a good option. Extra caution is often needed with liver disease, low albumin, certain heart rhythm problems, or a history of serious drug rashes. Pregnancy planning should be discussed with a prescriber because seizure control and fetal risk both need consideration.
Dosage and Usage
Dosing is individualized and should follow the prescriber’s directions and the product label. Phenytoin may be taken once daily or in divided doses, depending on the regimen selected, and timing consistency can affect blood levels. The chewable tablets can be chewed thoroughly before swallowing; they may also be swallowed whole with water if directed, but chewing is often used to help with administration.
Why it matters: Small changes in routine can shift phenytoin levels and side effects.
If Dilantin Infatabs is part of the plan, clinicians may order periodic blood tests to check phenytoin levels and to monitor for safety concerns such as liver effects or blood count changes. Abruptly stopping an anti-seizure medicine can increase seizure risk, so any changes are typically made under medical supervision. For broader context on seizure episodes and triggers, the guide Behind Epileptic Episodes may be a helpful starting point.
Strengths and Forms
This product listing is for Dilantin Infatabs 50 mg chewable tablets, a presentation often chosen when a smaller tablet is useful or when swallowing capsules is difficult. Availability can vary by pharmacy partner and supply, so the exact appearance and packaging may differ from what was used previously.
Phenytoin is also available in other dosage forms, such as extended-release capsules, oral suspension, and injectable options, each with different administration details and substitution rules. Switching between forms is not always a simple “mg-for-mg” change because absorption and blood levels can differ; a prescriber or pharmacist can confirm whether a substitution is appropriate.
Storage and Travel Basics
Store chewable phenytoin tablets at room temperature in a dry place, protected from excess moisture and heat. Keep the bottle tightly closed and out of reach of children and pets. Avoid transferring tablets into unmarked containers for long periods, since original packaging helps prevent mix-ups and supports correct identification.
Quick tip: When traveling, keep the prescription label with the medicine.
If Dilantin Infatabs is carried during travel, it is generally best to keep it in carry-on baggage to reduce exposure to temperature extremes. Time-zone changes can complicate dosing schedules, so clinicians may suggest planning ahead before a trip. If tablets become discolored, crumbly, or have an unusual odor, a pharmacist can advise whether they should be replaced.
Side Effects and Safety
Like many anti-seizure medicines, phenytoin can cause side effects that range from mild to serious. Commonly reported effects can include dizziness, drowsiness, unsteadiness, nausea, and vision changes such as nystagmus (involuntary eye movements). Gum swelling or overgrowth can occur with longer use, so regular dental care and good oral hygiene are often recommended.
Serious reactions are less common but require urgent evaluation. Seek immediate medical attention for signs of a severe allergic or skin reaction (rash with blistering, facial swelling, fever), unusual bruising or bleeding, yellowing of skin/eyes, or new mood changes. Prescriptions are confirmed with the prescriber before dispensing.
If Dilantin Infatabs is used long term, clinicians may also monitor for effects on bone health, vitamin D status, and overall nutrition, especially when other risk factors are present. Because sedation and coordination issues can occur, activities requiring alertness may need caution until the individual response is known.
Drug Interactions and Cautions
Phenytoin has many potential interactions because it can change how the liver processes other medicines, and other therapies can also change phenytoin levels. Interactions are especially important with warfarin and other anticoagulants, hormonal contraception, certain antifungals and antibiotics, several other seizure medicines, and some HIV therapies. Supplements and herbal products can matter too; for example, St. John’s wort may affect drug metabolism.
Alcohol use can also influence side effects and blood levels, and patterns of heavy use versus occasional intake can have different effects. A complete and updated medication list—prescription, over-the-counter, and supplements—helps clinicians and pharmacists check for problems before changes are made. For more learning resources on neurologic medicines and care topics, browse the Neurology Posts collection.
Compare With Alternatives
Several other anti-seizure medicines may be considered depending on seizure type, medical history, and tolerability. Common alternatives include levetiracetam, carbamazepine, oxcarbazepine, lamotrigine, and topiramate. Some options are less prone to enzyme-related interactions, while others may require different monitoring or have different side effect patterns. A clinician can weigh these tradeoffs against the treatment goals and the person’s other medicines.
When comparing options, formulation can be as important as the active ingredient. Chewable tablets may support administration for some people, while extended-release forms can simplify schedules for others. Product pages that may help with basic comparisons include Keppra Details and Tegretol Details. For additional browsing across related therapies, the Neurology Category lists other medicines in this area.
Pricing and Access
Access typically requires a valid prescription, and the prescription details must match what is dispensed. BorderFreeHealth supports cross-border access using a cash-pay model, which can be helpful when coverage is limited or absent. Cash-pay access is available for people without insurance. Availability can change, so it helps to confirm the current supply status before planning a refill.
For those who are reviewing options for ongoing therapy, non-dollar factors can also affect the overall out-of-pocket experience, such as tablet form, monitoring needs, and the likelihood of interactions with existing medicines. If site-wide offers are available, they are listed on the Available Programs page.
Authoritative Sources
For patient-friendly safety information and precautions, see Phenytoin MedlinePlus.
For official labeling and product identification details, review Phenytoin DailyMed.
If you want to request this medication through BorderFreeHealth, submit prescription information and select prompt, express shipping during checkout.
This content is for informational purposes only and is not a substitute for professional medical advice.
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What is Dilantin Infatabs used for?
Dilantin Infatabs is a chewable form of phenytoin sodium, a prescription anticonvulsant (anti-seizure medicine). It is commonly prescribed to help control certain seizure types, such as generalized tonic-clonic seizures and complex partial seizures, based on a clinician’s evaluation and the product labeling. Because seizure conditions and medical histories vary, the exact reason it is chosen differs from person to person. A prescriber can confirm whether this formulation and dose strength fit the intended seizure type and overall treatment plan.
Can chewable phenytoin tablets be swallowed instead of chewed?
Chewable phenytoin tablets are designed to be chewed thoroughly before swallowing, which can make administration easier for some people. In some situations, a clinician or pharmacist may confirm that swallowing the tablet whole with water is acceptable, but directions can vary by product and patient needs. How the tablet is taken can affect tolerability and consistency. The safest approach is to follow the instructions on the prescription label and ask a pharmacist if there is uncertainty about how to take the chewable form.
Why are blood tests sometimes needed with phenytoin?
Phenytoin is often monitored with blood tests because the relationship between dose and blood level can be unpredictable. Small changes in absorption, other medicines, liver function, or protein binding (especially albumin levels) may change the active level in the body. Monitoring may include phenytoin levels as well as tests related to safety, such as liver function or blood counts, depending on the clinical situation. A prescriber uses these results to assess whether the level appears appropriate and whether side effects might be related to the medicine.
What happens if a dose is missed?
Instructions for a missed dose can depend on the prescribed schedule and the person’s seizure history. Many prescription labels advise taking a missed dose when remembered unless it is close to the next scheduled dose, and to avoid taking two doses at once. Because abruptly changing phenytoin intake can affect blood levels, it is important to follow the directions provided by the prescriber and pharmacy label. If missed doses occur repeatedly, a pharmacist or prescriber can help identify practical ways to support adherence.
Which medications can interact with phenytoin chewable tablets?
Phenytoin has many potential interactions. It can lower the effectiveness of some hormonal contraceptives, and it can interact with blood thinners such as warfarin. Certain antibiotics and antifungals, other antiseizure medicines, and some HIV therapies may raise or lower phenytoin levels. Over-the-counter products and supplements matter too; for example, St. John’s wort can affect drug metabolism. Keeping an up-to-date medication and supplement list and sharing it with the care team helps reduce preventable interaction risks.
What should be discussed before switching between phenytoin forms or brands?
Before switching between chewable tablets, capsules, or liquid suspension, it is important to discuss substitution with a prescriber or pharmacist. Different formulations can have different absorption patterns, and the same milligram amount may not produce the same blood level after a switch. People may also respond differently to changes in inactive ingredients. Questions to raise include whether monitoring is needed after the change, whether the dosing schedule should stay the same, and what symptoms should prompt follow-up. Consistency is often emphasized with phenytoin therapy.
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