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Dilantin price and how to order online with US shipping
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What Dilantin Is and How It Works
Dilantin is the trade name for phenytoin, an antiseizure medicine used to prevent and control tonic-clonic (grand mal) and focal seizures. At YouDrugstore, you can check Dilantin price, compare options, and order for US shipping with a valid prescription. We are a licensed Canadian pharmacy headquartered in Manitoba and we meet Canadian pharmacy standards. Prescriptions are reviewed by licensed pharmacists before shipment.
Phenytoin stabilizes neuronal membranes by blocking voltage-gated sodium channels. This reduces repetitive firing in seizure-prone brain areas. The brand offers several forms: extended-release capsules (often called Dilantin Kapseal), chewable tablets (Infatabs), and oral suspension. Most patients take oral doses once or twice daily after titration. The generic name of Dilantin is phenytoin; the brand name for phenytoin is Dilantin.
We coordinate sourcing and shipment through licensed, vetted partner pharmacies internationally, so you receive authentic brand medication, a broad selection, and fair pricing.
Dosage and Usage
Your prescriber will individualize dosing. Serum levels and response guide adjustments due to phenytoin’s nonlinear kinetics.
- Starting dose (adults, oral): often 100 mg three times daily (300 mg/day) using Dilantin Kapseal 100 mg capsules. Some patients switch to once-daily extended-release after stabilization.
- Maintenance: usually 300-400 mg/day; some may need up to 600 mg/day under close monitoring. Typical therapeutic levels are 10-20 mcg/mL.
- Pediatric dosing: weight-based; chewable 50 mg tablets (Infatabs) or suspension may be used.
- Do not stop suddenly. Taper under medical supervision to avoid seizure rebound.
- Missed dose: take it when remembered unless it is close to the next dose. Do not double.
Administration tips:
- Swallow extended-release capsules whole. Do not crush or chew.
- Shake suspension well. Measure with an oral syringe or dose cup.
- Take consistently with respect to meals to keep levels steady.
- Separate from enteral feeding by a few hours if tube-fed, since feeds can reduce absorption.
Storage and travel:
- Store at room temperature, away from excess heat and moisture.
- Keep suspension tightly closed and shake before each dose.
- Carry doses in your hand luggage when flying. Keep in original labeled containers.
- Bring extra medication and your prescription in case of delays.
Benefits and Savings
Dilantin helps reduce seizure frequency and severity in focal and generalized tonic-clonic epilepsy. Stable blood levels support day-to-day seizure control and may reduce emergency visits. Extended-release capsules support once-daily dosing for many patients.
You can order brand or generic medicines at Canadian prices from YouDrugstore online or by phone. Friendly customer-service chat is available during posted office hours, and pharmacists can address medication questions related to your order. Many customers see 60-80% savings versus typical US retail costs, especially when choosing multi-month supplies.
Side Effects and Safety
Many effects are dose-related and improve with level adjustments. Contact your prescriber promptly for concerning symptoms.
- Common: drowsiness, dizziness, nausea, constipation, headache, tremor, coordination problems, nystagmus, slurred speech, and gingival overgrowth (gum swelling).
- Skin: mild rash can occur; severe reactions need urgent care.
- Serious hypersensitivity: DRESS, Stevens-Johnson syndrome, or toxic epidermal necrolysis. Risk is higher in patients with HLA-B*1502 (common in some Asian populations).
- Hematologic/hepatic: low blood counts, liver injury. Watch for fever, sore throat, unusual bruising, dark urine, or jaundice.
- Mood: rare suicidal thoughts. Report mood or behavior changes.
- Bone health: long-term use can reduce vitamin D and bone density.
- Endocrine: folate deficiency; consider supplementation if advised.
- Cardiac: phenytoin can depress conduction at high levels. Risk is greatest with rapid IV use but mention any heart block or bradycardia history to your prescriber.
Important interactions (drugs that interact with Dilantin):
Phenytoin induces liver enzymes and can lower levels of oral contraceptives, corticosteroids, some antivirals, and many other medicines. Azole antifungals, amiodarone, valproate, isoniazid, and some antibiotics can raise phenytoin levels. Warfarin effects may change in both directions, so INR monitoring is needed. Alcohol, cannabis, and sedatives can increase drowsiness. Always provide your full medication list, including supplements.
Dilantin in pregnancy needs careful discussion. Phenytoin may cause birth defects (fetal hydantoin syndrome). If pregnancy is possible, discuss folic acid and reliable contraception. Do not stop this drug without speaking to your prescriber, as seizures during pregnancy also carry risk.
Onset Time
With oral therapy, steady-state levels often take about 5-7 days, though response varies. A loading regimen can establish therapeutic levels sooner when appropriate. Many people notice fewer seizures once serum levels are within the therapeutic range, usually within the first week of stable dosing.
Compare With Alternatives
Several antiseizure medicines can be used based on seizure type, comorbidities, and interactions.
Carbamazepine is often used for focal seizures and trigeminal neuralgia, but it induces enzymes and has its own rash risk. Valproate covers many seizure types but may cause weight gain and requires liver monitoring. Levetiracetam has fewer interactions but may affect mood in some patients.
Topiramate is another option, sometimes chosen for patients with focal seizures or who also need migraine prevention; see Topamax for details. If you need a chewable 50 mg form, consider Dilantin Infatabs, and for liquid dosing, review Dilantin Suspension.
Combination Therapy
Dilantin can be used alone or with other antiseizure medicines. Combination therapy may improve control but increases interaction risk. Phenytoin can lower the effectiveness of hormonal birth control and many other medications by enzyme induction. Your clinician may adjust doses of companion drugs or select non-interacting options. If you take warfarin, phenytoin can raise or lower INR at different phases; frequent checks are prudent after changes.
Discuss vitamins such as folic acid and vitamin D if you will take long-term therapy, because this drug may reduce levels.
Patient Suitability and Cost-Saving Tips
Dilantin may suit adults and children with focal seizures or generalized tonic-clonic seizures who need steady control and can follow monitoring plans. It may not suit those with significant liver disease, prior severe skin reactions to aromatic antiseizure drugs, or certain conduction heart issues. Its use in Epilepsy and Seizures is well established. Off-label uses like trigeminal neuralgia or neuropathic pain are rare today due to alternatives but may be considered when others fail.
To save on Dilantin cost, consider a multi-month supply, which can lower the per-month price. We also offer gentle reorder reminders so you do not run out. For current offers and bulk options, see our Dilantin coupon.
If you want background reading, our article Epilepsy When The Brain Goes Crazy But The Person With The Brain Isnt offers a helpful overview of living with seizures. For those exploring migraine prevention options like topiramate, see National Migraine And Headache Awareness Month Breaking Barriers To Better Care.
Authoritative Sources
Review full product and safety details in these references:
- FDA Prescribing Information for Dilantin (phenytoin)
- Health Canada Drug Product Database: Phenytoin
- Pfizer Dilantin Product Page
You can order Dilantin online today. We coordinate sourcing and shipment through licensed partners and offer prompt, express, cold-chain shipping where required. Our team is here to help with ordering and to direct medication questions to a pharmacist as needed.
Disclaimer: This page is informational and does not replace professional medical advice. Only your prescriber can diagnose, treat, or adjust your medications. Always read the package leaflet and follow your prescriber’s directions.
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What is the generic for Dilantin, and is it the same?
The generic name of Dilantin is phenytoin. Approved generics contain the same active ingredient and work the same way. Some patients switch between brand and generic without issues, but monitoring levels and seizure control during any switch is wise. Your clinician may check a serum level after changes.
How long does Dilantin take to start working?
Many people see benefit once serum levels reach the therapeutic range. With regular oral dosing, that often takes about 5-7 days. A loading regimen can reach levels faster when used under supervision. Full stabilization and dose fine-tuning may take one to two weeks.
What forms and strengths does Dilantin come in?
Common options include extended-release capsules (often 100 mg, called Dilantin Kapseal), 50 mg chewable tablets (Infatabs), and an oral suspension. Your prescriber chooses a form based on age, swallowing ability, and dosing needs. Extended-release capsules are usually taken once daily after stabilization.
Are there important drug interactions with Dilantin?
Yes. Phenytoin induces liver enzymes and can lower levels of oral contraceptives, corticosteroids, and many medicines. Azoles, amiodarone, isoniazid, and valproate can raise phenytoin levels. Alcohol and sedatives increase drowsiness. Warfarin effects can vary, so INR monitoring is prudent when starting or adjusting.
Is Dilantin safe in pregnancy?
Phenytoin can cause birth defects, and stopping it suddenly can trigger seizures that also pose risks. If pregnancy is possible or you are planning, discuss folic acid and options with your prescriber. Do not change the dose or stop on your own. Careful monitoring during pregnancy is standard.
How can I buy Dilantin online and manage Dilantin price?
Order with a valid prescription and US shipping at YouDrugstore. You can compare Dilantin price, choose brand or generic, and select multi-month supplies to reduce the per-month cost. Savings of 60-80% vs typical US prices are common. Support is available even if you have no insurance.