Dilantin® Infatabs (Phenytoin) Chewable Tablets Uses and Details

What Dilantin® Is and How It Works

Dilantin Infatabs are chewable phenytoin 50 mg tablets used to help control focal (partial) and generalized tonic-clonic seizures. The active ingredient, phenytoin, stabilizes neuronal membranes by limiting voltage-gated sodium channel activity. This reduces repetitive firing and helps prevent seizure spread. Many patients compare Dilantin Infatabs cost with US cash pricing and search for dilantin infatabs without insurance to manage expenses while staying on therapy.

YouDrugstore is a licensed Canadian pharmacy based in Manitoba; licensed pharmacists review prescriptions before dispensing, and you can order brand or generic medicines at Canadian prices along with OTC items online or by phone, with chat available during posted hours.

Dilantin Infatabs 50 mg are immediate-release tablets that can be chewed or swallowed. They offer dose flexibility for adults and children who need smaller increments. Phenytoin is not effective for typical absence seizures and may worsen them. Patients are usually dosed in divided doses to keep blood levels in the therapeutic range (often 10–20 mcg/mL), with adjustments guided by clinical response and serum concentrations.

Other phenytoin forms include oral suspension and extended-release capsules. The chewable format helps those who have difficulty swallowing or who need precise 50 mg steps. Keep administration consistent day to day. For condition context, see our page on Seizures.

Dosage and Usage

• Phenytoin dosing is individualized. Clinicians often start with divided daily doses and adjust to response and blood levels.
• Each Dilantin Infatab contains 50 mg phenytoin. Chew thoroughly or swallow whole with water.
• Take at the same times each day. Food can help reduce stomach upset.
• Avoid switching between dosage forms or brands without prescriber guidance and follow-up levels.
• Separate from antacids or calcium/magnesium products by 2 hours to reduce absorption interference.
• Do not stop suddenly. Abrupt discontinuation can increase seizure risk.
• Missed dose: take when remembered unless it is close to the next dose. Do not double up.
• Regular blood tests may be used to keep levels in range and to check liver function.
• Maintain good dental hygiene; phenytoin can cause gum overgrowth in some patients.

• Store at 15–30 °C (59–86 °F) in a dry place, away from moisture and heat.
• Keep tablets in the original, tightly closed container with the label.
• For travel, keep your Dilantin Infatabs in carry-on luggage with a copy of your prescription.
• Use a pill organizer if helpful, but keep a small labeled supply in the original bottle.
• Do not leave medicine in a hot car or near windows. Avoid excessive humidity.
• Keep out of reach of children and pets.

Benefits and Savings

Dilantin Infatabs chewable tablets provide flexible dosing in 50 mg steps. Many patients find the chewable format easier to take than larger capsules. The medication has a long track record for controlling focal and generalized tonic-clonic seizures when dosed and monitored appropriately.

You can buy Dilantin Infatabs from Canadian sources and often save 60–80% versus typical US prices. Multi-month supplies can lower the per-month Dilantin Infatabs price, and reorder reminders help prevent gaps. We also work with licensed, vetted international partner pharmacies to supply authentic brands and a wide selection at accessible prices. Patients paying without insurance can compare Dilantin Infatabs cost options and select brand or generic phenytoin based on prescriber guidance.

If you are looking for promotions, see our page for a dilantin infatabs coupon. Some orders qualify for bulk or multi-pack savings. Many customers also search for phenytoin 50 mg tablets buy deals or a Dilantin Infatabs discount to reduce out-of-pocket costs.

Side Effects and Safety

• Drowsiness or dizziness
• Nystagmus (eye movement), blurred or double vision
• Ataxia or unsteady gait, slurred speech, tremor
• Nausea, vomiting, constipation
• Rash or itching
• Gingival hyperplasia (gum swelling)
• Headache, confusion, or trouble concentrating
• Low folate levels and potential effects on bone health over time

Serious reactions are less common but require prompt medical care. These include severe skin reactions such as Stevens–Johnson syndrome or toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (DRESS), liver injury, blood dyscrasias, lymphadenopathy, and suicidal thoughts or behavior. Phenytoin is teratogenic. Genetic susceptibility (for example, HLA-B*1502 in certain Asian populations) increases SJS/TEN risk. Alcohol and many medicines interact with phenytoin, including oral contraceptives, anticoagulants, some antivirals, antifungals, and other antiseizure drugs. Report new symptoms, toxicity signs (marked drowsiness, confusion, poor coordination), or rash promptly. Do not change dose or stop without prescriber direction.

Onset Time

Phenytoin is absorbed over several hours, and effects begin as blood concentrations rise. Because phenytoin shows nonlinear kinetics, dosing changes can produce disproportionate shifts in levels. Many patients notice fewer seizures as the dose is optimized and serum levels approach the typical therapeutic range. Steady state often takes about 7–10 days after a dose adjustment. Clinicians may fine-tune the regimen over several weeks to balance seizure control and tolerability.

Compare With Alternatives

Extended-release capsules of phenytoin offer once or twice daily dosing when stable. If a simpler schedule is the goal, discuss whether capsules such as Dilantin® are appropriate. Chewable tablets can still be used for precise titration or for patients who prefer a smaller tablet.

Topiramate is another antiseizure option used for focal seizures and migraine prevention. It has a different mechanism and side-effect profile. See Topamax® for an example of this class.

Levetiracetam is a common alternative with fewer drug–drug interactions. Oral suspension of phenytoin is available if a liquid is needed, though consistency of measuring and absorption should be considered. The best choice depends on seizure type, comorbidities, drug interactions, and personal preferences.

Combination Therapy

• Often paired with levetiracetam to expand seizure coverage with fewer interactions.
• May be combined with lamotrigine; slower titration can help reduce rash risk.
• Valproate can raise phenytoin levels; monitoring and dose adjustments are common.
• Topiramate can be added; watch for cognitive effects and appetite changes.
• A rescue benzodiazepine may be prescribed for breakthrough seizures.
• Hormonal contraceptives can be less effective with phenytoin; consider backup methods.
• Discuss folate and vitamin D/calcium support if long-term therapy is planned.

Patient Suitability and Cost-Saving Tips

Candidates often include patients with focal or generalized tonic-clonic seizures who benefit from immediate-release dosing or a chewable format. It is typically avoided for absence seizures. Caution is needed with a history of serious skin reactions to hydantoins, significant liver disease, or during pregnancy. Genetic risk factors and multiple interacting medicines may steer therapy toward alternatives.

To manage costs, compare brand and generic phenytoin 50 mg infatab options and consider multi-month supplies to lower the average monthly price. Reorder reminders help maintain continuity. Patients paying out of pocket can review dilantin infatabs cash price choices and look for a Dilantin Infatabs discount during seasonal promotions. Those managing dilantin infatabs without insurance can still access Canadian pricing and request their preferred quantity after speaking with the prescriber.

Authoritative Sources

FDA Prescribing Information for Dilantin (phenytoin)

Health Canada Drug Product Database (search: Dilantin or phenytoin)

Order Dilantin® from YouDrugstore: add to cart, upload your prescription, and we ship with prompt, express shipping.

This content is educational and does not replace advice from your own healthcare professional. Always follow your prescriber’s instructions and the medication guide packaged with your medicine.