Dilantin 50mg Capsule (Phenytoin): Complete Medicine Guide

[{"condition":"Generalized tonic-clonic seizures","description":"This medicine is used to reduce the frequency and severity of generalized tonic-clonic seizures in adults and children when other treatments are not suitable.","evidence":"Well-established"},{"condition":"Complex partial seizures","description":"It helps control complex partial seizures, also called focal impaired awareness seizures, by stabilizing abnormal brain electrical activity.","evidence":"Well-established"},{"condition":"Seizure prevention after neurosurgery","description":"Short-term use may be prescribed around neurosurgical procedures to lower the risk of early postoperative seizures.","evidence":"Established in specific settings"},{"condition":"Seizure prevention after traumatic brain injury","description":"It may be used for a limited period after moderate to severe head injury to prevent early post-traumatic seizures.","evidence":"Established in specific settings"},{"condition":"Status epilepticus","description":"In hospital settings, phenytoin can be used as part of emergency treatment for prolonged or repeated seizures, though other formulations and routes may be preferred.","evidence":"Established in emergency settings"}]

Off-label uses: [{"condition":"Trigeminal neuralgia","description":"Sometimes prescribed off-label for certain types of facial nerve pain when standard treatments are not effective or not tolerated.","evidence":"Limited"},{"condition":"Certain cardiac arrhythmias","description":"Historically used for some abnormal heart rhythms, but safer and more effective alternatives are generally preferred today.","evidence":"Limited and largely superseded"},{"condition":"Migraine prophylaxis","description":"Occasionally considered off-label for preventing migraines in selected patients, but it is not a first-line option.","evidence":"Limited"}]

Primary treatment for: Epilepsy and other seizure disorders

Also treats: Generalized tonic-clonic seizures, Complex partial seizures, Post-neurosurgical seizure prevention, Post-traumatic seizure prevention

Generic Name(s)	Phenytoin (50mg)
Brand Name	m toin 50mg tablet
Manufacturer	Medopharm
Packaging / Form	Varies by brand (Allopathy)
Therapeutic Class	NEURO CNS
Action Class	Sodium channel modulators (AED)
Route of Administration	Oral
Storage	Store at room temperature between 15°C and 30°C (59°F and 86°F) in a dry place. Keep the capsules in their original container, tightly closed, away from heat, moisture, and direct light. Do not store in the bathroom. Keep out of reach of children and pets.
Shelf Life	The shelf life is typically 24 to 36 months from the date of manufacture, depending on the manufacturer and packaging. Always check the expiry date on the pack and do not use after it has passed.
WHO Guideline	Not established from the available information. Guidelines from other organizations may recommend phenytoin for specific seizure types, but this profile does not claim a WHO recommendation.
ICMR Guideline	Not established from the available information. Clinicians should refer to current national and international epilepsy guidelines for specific recommendations.

🌅 Morning ❌ ☀️ Afternoon ❌ 🌆 Evening ❌ 🌙 Night ❌

Drug	Severity	Effect
Warfarin	Major
Oral contraceptives	Major
Valproate	Major
Carbamazepine	Major
Rifampicin	Major
Fluconazole	Major
Cimetidine	Moderate
Omeprazole	Moderate
Doxycycline	Moderate
Furosemide	Moderate

🚫 Contraindications

["Known hypersensitivity or serious allergic reaction to phenytoin or other hydantoin medicines","History of severe skin reactions such as Stevens-Johnson syndrome or toxic epidermal necrolysis associated with phenytoin","Certain heart rhythm disorders such as sinus bradycardia, sinoatrial block, or second- and third-degree heart block","History of porphyria","Use of delavirdine, a medicine for HIV, because of a serious interaction","Breastfeeding is not an absolute contraindication but requires medical guidance"]

⚠️ Warnings & Precautions

["Do not stop this medicine suddenly, as it can cause withdrawal seizures.","This medicine can cause serious skin reactions; seek immediate care for any rash, blisters, or peeling skin.","Blood levels can be affected by many other medicines, so always inform your clinician about all medicines and supplements.","This medicine can cause drowsiness and dizziness; avoid driving or operating machinery until you know how it affects you.","Regular blood tests are needed to monitor drug levels, liver function, and blood counts.","Long-term use can affect bones, gums, and vitamin D levels; regular dental and medical check-ups are recommended.","This medicine can reduce the effectiveness of hormonal contraceptives; use backup contraception.","Use with caution in people with liver disease, kidney disease, heart disease, or low albumin levels.","This medicine may affect the developing baby; discuss pregnancy planning with your clinician."]

🤱 Lactation Safety

This medicine passes into breast milk in small amounts. Breastfeeding is generally considered acceptable while taking this medicine, but the baby should be monitored for drowsiness or poor feeding. Discuss with your clinician to weigh the benefits and risks.

Additional Safety Advice

If you are planning pregnancy, talk to your clinician before conception. This medicine can increase the risk of birth defects and may affect the baby's brain development. Your clinician may consider switching to a different medicine or adjusting the dose. Take folic acid supplements as advised. Use effective contraception until a plan is in place, and remember that this medicine can reduce the effectiveness of hormonal birth control.

After surgery, tell your surgical and anesthesia team that you take this medicine. It can interact with some anesthetic and pain medicines, and it may affect how your body handles other drugs. Your clinician may need to monitor your blood levels more closely during recovery. Do not stop the medicine unless your clinician tells you to.

Tell your dentist that you take this medicine before any dental procedure. Long-term use can cause gum swelling and tenderness, so regular dental check-ups and good oral hygiene are important. Some dental medicines and anesthetics may interact with this medicine, so your dentist may need to coordinate with your clinician.

Regular exercise is generally good for people with epilepsy, but take precautions if this medicine makes you dizzy or unsteady. Avoid activities with a high risk of falls or injury, such as climbing, cycling without a helmet, or swimming alone. Always warm up and stay hydrated. If exercise triggers seizures or you feel unwell, stop and consult your clinician.

This medicine can cause drowsiness, dizziness, and unsteadiness, especially when you first start taking it or after a dose increase. Avoid driving or operating heavy machinery until you know how it affects you. Your ability to work may depend on your seizure control and the type of job you do. If your job involves heights, driving, or operating machinery, discuss safety with your clinician. With stable blood levels and good seizure control, many people are able to continue their usual activities.

Do not stop this medicine on your own. Your clinician may consider stopping or changing it if your seizures are well controlled for a long period, if you develop serious side effects, or if you become pregnant and need a different treatment plan. Stopping should always be done gradually under medical supervision to avoid withdrawal seizures.

Long-term use of this medicine can lead to gum swelling and tenderness, increased hair growth, coarsening of facial features, and effects on bones such as reduced bone density. It can also cause nerve damage with numbness or tingling, and it may affect vitamin D and calcium levels. Regular monitoring of blood levels, liver function, blood counts, and bone health is recommended. Your clinician may adjust the dose or recommend supplements and dental care. Do not stop the medicine on your own, because seizures may return.

🔄 Substitutes for m toin 50mg tablet

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[{"medicine":"This medicine (phenytoin)","class":"Hydantoin anticonvulsant","main_uses":"Generalized tonic-clonic and complex partial seizures","key_side_effects":"Dizziness, drowsiness, gum swelling, hair growth, skin reactions","monitoring":"Blood levels, liver function, blood counts"},{"medicine":"Carbamazepine","class":"Dibenzazepine anticonvulsant","main_uses":"Partial and generalized tonic-clonic seizures, trigeminal neuralgia","key_side_effects":"Dizziness, drowsiness, rash, low sodium","monitoring":"Blood levels, blood counts, sodium"},{"medicine":"Valproate","class":"Fatty acid derivative anticonvulsant","main_uses":"Many seizure types, bipolar disorder, migraine prevention","key_side_effects":"Weight gain, tremor, hair loss, liver and pancreas problems","monitoring":"Liver function, blood counts, pregnancy prevention"},{"medicine":"Levetiracetam","class":"Pyrrolidine anticonvulsant","main_uses":"Partial and generalized seizures","key_side_effects":"Drowsiness, irritability, mood changes","monitoring":"Clinical response, kidney function"}]