PHENYTOIN vs PHENYTOIN SODIUM

Compare PHENYTOIN (Phenytoin) and PHENYTOIN SODIUM (Phenytoin Sodium) — clinical data, side effects, and patient experiences.

PHENYTOIN

Phenytoin, Dilantin · Anticonvulsant

How it works

12.1 Mechanism of Action The precise mechanism by which phenytoin exerts its therapeutic effect has not been established but is thought to involve the voltage-dependent blockade of...

Approved for

1 INDICATIONS AND USAGE Phenytoin chewable tablets are indicated for the treatment of generalized tonic-clonic (grand mal) and complex partial (psychomotor

temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery. ( 1 )

OralTablet

PHENYTOIN SODIUM

Phenytoin Sodium · Anticonvulsant

How it works

12.1 Mechanism of Action The precise mechanism by which phenytoin exerts its therapeutic effect has not been established but is thought to involve the voltage-dependent blockade of...

Approved for

1 INDICATIONS AND USAGE Parenteral Phenytoin Sodium Injection is indicated for the treatment of generalized tonic-clonic status epilepticus

and prevention and treatment of seizures occurring during neurosurgery. Intravenous phenytoin can also be substituted

as short-term use

for oral phenytoin. Parenteral phenytoin should be used only when oral phenytoin administration is not possible [see Dosage and Administration (2.1

Intramuscular, IntravenousTablet

Quick Comparison

PHENYTOINPHENYTOIN SODIUM

Drug Class

Anticonvulsant

Route

Oral

Intramuscular, Intravenous

Half-Life

—

FDA Approved

—

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

PHENYTOIN

Drug Not Working

>10%

Falls

1-10%

Dizziness

1-10%

Headache

0.1-1%

Nausea

0.1-1%

Fatigue

0.1-1%

Fever

0.1-1%

Rash

0.1-1%

PHENYTOIN SODIUM

Drug Not Working

>10%

Falls

1-10%

Dizziness

1-10%

Headache

0.1-1%

Nausea

0.1-1%

Fatigue

0.1-1%

Fever

0.1-1%

Rash

0.1-1%

FDA Warnings

PHENYTOIN

5 WARNINGS AND PRECAUTIONS • Withdrawal Precipitated Seizure: May precipitate status epilepticus
2 ) • Serious Dermatologic Reactions: Discontinue phenytoin chewable tablets at the first sign of a rash, unless the rash is clearly not drug-related
2 Suicidal Behavior and Ideation Antiepileptic drugs (AEDs), including phenytoin chewable tablets, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication
Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1

PHENYTOIN SODIUM

5 WARNINGS AND PRECAUTIONS Withdrawal Precipitated Seizure : May precipitate status epilepticus
2 ) Serious Dermatologic Reactions : Discontinue phenytoin at the first sign of a rash, unless the rash is clearly not drug-related
1 Cardiovascular Risk Associated with Rapid Infusion Rapid intravenous administration of Phenytoin Sodium Injection increases the risk of adverse cardiovascular reactions, including severe hypotension and cardiac arrhythmias
Cardiac arrhythmias have included bradycardia, heart block, ventricular tachycardia, and ventricular fibrillation which have resulted in asystole, cardiac arrest, and death

Clinical Trial Data

No head-to-head clinical studies found for PHENYTOIN vs PHENYTOIN SODIUM.

PHENYTOIN vs PHENYTOIN SODIUM: What You Should Know

Key Differences

Both PHENYTOIN and PHENYTOIN SODIUM belong to the Anticonvulsant class. While they share a similar mechanism of action, differences in pharmacokinetics, dosing, and side effect profiles may make one more suitable than the other for individual patients. PHENYTOIN is administered via Oral, whereas PHENYTOIN SODIUM uses Intramuscular or Intravenous. Route of administration can affect onset of action and patient adherence.

Safety Considerations

PHENYTOIN carries 4 FDA warnings. PHENYTOIN SODIUM carries 4 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.

Related Comparisons

LACOSAMIDE vs PHENYTOIN SODIUM→PHENYTOIN SODIUM vs PREGABALIN→CARBAMAZEPINE vs PHENYTOIN SODIUM→PHENYTOIN SODIUM vs ZONISAMIDE→LEVETIRACETAM ORAL vs PHENYTOIN SODIUM→EXTENDED PHENYTOIN SODIUM vs PHENYTOIN SODIUM→

Loading comparison data...

PHENYTOIN vs PHENYTOIN SODIUM

Compare PHENYTOIN (Phenytoin) and PHENYTOIN SODIUM (Phenytoin Sodium) — clinical data, side effects, and patient experiences.

PHENYTOIN

Phenytoin, Dilantin · Anticonvulsant

How it works

12.1 Mechanism of Action The precise mechanism by which phenytoin exerts its therapeutic effect has not been established but is thought to involve the voltage-dependent blockade of...

Approved for

1 INDICATIONS AND USAGE Phenytoin chewable tablets are indicated for the treatment of generalized tonic-clonic (grand mal) and complex partial (psychomotor

temporal lobe) seizures and prevention and treatment of seizures occurring during or following neurosurgery. ( 1 )

OralTablet

PHENYTOIN SODIUM

Phenytoin Sodium · Anticonvulsant

How it works

12.1 Mechanism of Action The precise mechanism by which phenytoin exerts its therapeutic effect has not been established but is thought to involve the voltage-dependent blockade of...

Approved for

1 INDICATIONS AND USAGE Parenteral Phenytoin Sodium Injection is indicated for the treatment of generalized tonic-clonic status epilepticus

and prevention and treatment of seizures occurring during neurosurgery. Intravenous phenytoin can also be substituted

as short-term use

for oral phenytoin. Parenteral phenytoin should be used only when oral phenytoin administration is not possible [see Dosage and Administration (2.1

Intramuscular, IntravenousTablet

Quick Comparison

PHENYTOINPHENYTOIN SODIUM

Drug Class

Anticonvulsant

Route

Oral

Intramuscular, Intravenous

Half-Life

—

FDA Approved

—

Side Effect Frequency Comparison

Estimated frequency (%) based on clinical trial data

Side Effects

PHENYTOIN

Drug Not Working

>10%

Falls

1-10%

Dizziness

1-10%

Headache

0.1-1%

Nausea

0.1-1%

Fatigue

0.1-1%

Fever

0.1-1%

Rash

0.1-1%

PHENYTOIN SODIUM

Drug Not Working

>10%

Falls

1-10%

Dizziness

1-10%

Headache

0.1-1%

Nausea

0.1-1%

Fatigue

0.1-1%

Fever

0.1-1%

Rash

0.1-1%

FDA Warnings

PHENYTOIN

5 WARNINGS AND PRECAUTIONS • Withdrawal Precipitated Seizure: May precipitate status epilepticus
2 ) • Serious Dermatologic Reactions: Discontinue phenytoin chewable tablets at the first sign of a rash, unless the rash is clearly not drug-related
2 Suicidal Behavior and Ideation Antiepileptic drugs (AEDs), including phenytoin chewable tablets, increase the risk of suicidal thoughts or behavior in patients taking these drugs for any indication
Pooled analyses of 199 placebo-controlled clinical trials (mono- and adjunctive therapy) of 11 different AEDs showed that patients randomized to one of the AEDs had approximately twice the risk (adjusted Relative Risk 1

PHENYTOIN SODIUM

5 WARNINGS AND PRECAUTIONS Withdrawal Precipitated Seizure : May precipitate status epilepticus
2 ) Serious Dermatologic Reactions : Discontinue phenytoin at the first sign of a rash, unless the rash is clearly not drug-related
1 Cardiovascular Risk Associated with Rapid Infusion Rapid intravenous administration of Phenytoin Sodium Injection increases the risk of adverse cardiovascular reactions, including severe hypotension and cardiac arrhythmias
Cardiac arrhythmias have included bradycardia, heart block, ventricular tachycardia, and ventricular fibrillation which have resulted in asystole, cardiac arrest, and death

Clinical Trial Data

No head-to-head clinical studies found for PHENYTOIN vs PHENYTOIN SODIUM.

PHENYTOIN vs PHENYTOIN SODIUM: What You Should Know

Key Differences

Safety Considerations

This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.