Drugs Similar to DILANTIN

DILANTIN (phenytoin) is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 30 mg DILANTIN- ( extended phenytoin sodium capsule , USP) for oral administration contains 30 mg phenytoin sodium, USP. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule shell cap and body components contain D&C yellow No. 10 (cap); FD&C red No. 3 (cap); gelatin (cap and body); and titanium dioxide (cap and body). Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Each 100 mg DILANTIN- 100 mg ( extended phenytoin sodium capsule, USP) for oral administration contains 100 mg phenytoin sodium. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule body contains gelatin, NF and titanium dioxide, USP. The capsule cap contains D&C red No. 28; FD&C yellow No. 6; and gelatin NF. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. chemical structure

DILANTIN (phenytoin) is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 30 mg DILANTIN- ( extended phenytoin sodium capsule , USP) for oral administration contains 30 mg phenytoin sodium, USP. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule shell cap and body components contain D&C yellow No. 10 (cap); FD&C red No. 3 (cap); gelatin (cap and body); and titanium dioxide (cap and body). Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Each 100 mg DILANTIN- 100 mg ( extended phenytoin sodium capsule, USP) for oral administration contains 100 mg phenytoin sodium. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule body contains gelatin, NF and titanium dioxide, USP. The capsule cap contains D&C red No. 28; FD&C yellow No. 6; and gelatin NF. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. chemical structure

DILANTIN (phenytoin) is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 30 mg DILANTIN- ( extended phenytoin sodium capsule , USP) for oral administration contains 30 mg phenytoin sodium, USP. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule shell cap and body components contain D&C yellow No. 10 (cap); FD&C red No. 3 (cap); gelatin (cap and body); and titanium dioxide (cap and body). Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Each 100 mg DILANTIN- 100 mg ( extended phenytoin sodium capsule, USP) for oral administration contains 100 mg phenytoin sodium. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule body contains gelatin, NF and titanium dioxide, USP. The capsule cap contains D&C red No. 28; FD&C yellow No. 6; and gelatin NF. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. chemical structure

DILANTIN (phenytoin) is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 30 mg DILANTIN- ( extended phenytoin sodium capsule , USP) for oral administration contains 30 mg phenytoin sodium, USP. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule shell cap and body components contain D&C yellow No. 10 (cap); FD&C red No. 3 (cap); gelatin (cap and body); and titanium dioxide (cap and body). Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Each 100 mg DILANTIN- 100 mg ( extended phenytoin sodium capsule, USP) for oral administration contains 100 mg phenytoin sodium. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule body contains gelatin, NF and titanium dioxide, USP. The capsule cap contains D&C red No. 28; FD&C yellow No. 6; and gelatin NF. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. chemical structure

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-Diphenylhydantoin sodium salt, having the following structural formula: Each 200 mg or 300 mg PHENYTEK ® capsule (extended phenytoin sodium capsule, USP) for oral administration contains 200 mg or 300 mg phenytoin sodium, USP. Also contains colloidal silicon dioxide, FD&C Blue No. 1, gelatin, hydroxyethyl cellulose, magnesium oxide, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate and titanium dioxide. In addition, the imprinting ink contains black iron oxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, propylene glycol and shellac glaze. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to prompt phenytoin sodium capsules with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 3.

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-Diphenylhydantoin sodium salt, having the following structural formula: Each 200 mg or 300 mg PHENYTEK ® capsule (extended phenytoin sodium capsule, USP) for oral administration contains 200 mg or 300 mg phenytoin sodium, USP. Also contains colloidal silicon dioxide, FD&C Blue No. 1, gelatin, hydroxyethyl cellulose, magnesium oxide, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate and titanium dioxide. In addition, the imprinting ink contains black iron oxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, propylene glycol and shellac glaze. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to prompt phenytoin sodium capsules with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 3. Phenytoin Structural Formula

DILANTIN (phenytoin) is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 30 mg DILANTIN- ( extended phenytoin sodium capsule , USP) for oral administration contains 30 mg phenytoin sodium, USP. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule shell cap and body components contain D&C yellow No. 10 (cap); FD&C red No. 3 (cap); gelatin (cap and body); and titanium dioxide (cap and body). Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Each 100 mg DILANTIN- 100 mg ( extended phenytoin sodium capsule, USP) for oral administration contains 100 mg phenytoin sodium. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule body contains gelatin, NF and titanium dioxide, USP. The capsule cap contains D&C red No. 28; FD&C yellow No. 6; and gelatin NF. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. chemical structure

DILANTIN (phenytoin) is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 30 mg DILANTIN- ( extended phenytoin sodium capsule , USP) for oral administration contains 30 mg phenytoin sodium, USP. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule shell cap and body components contain D&C yellow No. 10 (cap); FD&C red No. 3 (cap); gelatin (cap and body); and titanium dioxide (cap and body). Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Each 100 mg DILANTIN- 100 mg ( extended phenytoin sodium capsule, USP) for oral administration contains 100 mg phenytoin sodium. Also contains confectioner’s sugar, NF; lactose monohydrate, NF; magnesium stearate, NF; and talc, USP. The capsule body contains gelatin, NF and titanium dioxide, USP. The capsule cap contains D&C red No. 28; FD&C yellow No. 6; and gelatin NF. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. chemical structure

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 100 mg extended phenytoin sodium capsule USP contains 100 mg phenytoin sodium USP. Also contains confectioner’s sugar, hypromellose, magnesium oxide, magnesium stearate, microcrystalline cellulose, and talc. In addition, the empty hard gelatin capsule shells also contain gelatin, sodium lauryl sulphate, and titanium dioxide. The capsules are imprinted with edible ink containing black iron oxide, potassium hydroxide, propylene glycol and shellac. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. Structural Formula

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 100 mg extended phenytoin sodium capsule USP contains 100 mg phenytoin sodium USP. Also contains confectioner’s sugar, hypromellose, magnesium oxide, magnesium stearate, microcrystalline cellulose, and talc. In addition, the empty hard gelatin capsule shells also contain gelatin, sodium lauryl sulphate, and titanium dioxide. The capsules are imprinted with edible ink containing black iron oxide, potassium hydroxide, propylene glycol and shellac. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. structure

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 100 mg extended phenytoin sodium capsule USP contains 100 mg phenytoin sodium USP. Also contains confectioner’s sugar, hypromellose, magnesium oxide, magnesium stearate, microcrystalline cellulose, and talc. In addition, the empty hard gelatin capsule shells also contain gelatin, sodium lauryl sulphate, and titanium dioxide. The capsules are imprinted with edible ink containing black iron oxide, potassium hydroxide, propylene glycol and shellac. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. structure

Phenytoin sodium, USP is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each extended phenytoin sodium capsule, USP for oral administration contains 100 mg phenytoin sodium, USP. Each capsule also contains the following inactive ingredients: D&C Red #28, D&C Red #33, FD&C Blue #1, gelatin, hydroxypropyl cellulose, mannitol, magnesium stearate, talc and titanium dioxide. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 5. Struct Form.

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 100 mg extended phenytoin sodium capsule USP contains 100 mg phenytoin sodium USP. Also contains confectioner’s sugar, hypromellose, magnesium oxide, magnesium stearate, microcrystalline cellulose, and talc. In addition, the empty hard gelatin capsule shells also contain gelatin, sodium lauryl sulphate, and titanium dioxide. The capsules are imprinted with edible ink containing black iron oxide, potassium hydroxide, propylene glycol and shellac. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. structure

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each 100 mg extended phenytoin sodium capsule USP contains 100 mg phenytoin sodium USP. Also contains confectioner’s sugar, hypromellose, magnesium oxide, magnesium stearate, microcrystalline cellulose, and talc. In addition, the empty hard gelatin capsule shells also contain gelatin, sodium lauryl sulphate, and titanium dioxide. The capsules are imprinted with edible ink containing black iron oxide, potassium hydroxide, propylene glycol and shellac. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. structure

Phenytoin sodium, USP is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each extended phenytoin sodium capsule, USP for oral administration contains 100 mg phenytoin sodium, USP. Each capsule also contains the following inactive ingredients: D&C Red #28, D&C Red #33, FD&C Blue #1, gelatin, hydroxypropyl cellulose, mannitol, magnesium stearate, talc and titanium dioxide. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules , USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 5. Struct Form.

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-Diphenylhydantoin sodium salt, having the following structural formula: Each 200 mg or 300 mg PHENYTEK ® capsule (extended phenytoin sodium capsule, USP) for oral administration contains 200 mg or 300 mg phenytoin sodium, USP. Also contains colloidal silicon dioxide, FD&C Blue No. 1, gelatin, hydroxyethyl cellulose, magnesium oxide, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate and titanium dioxide. In addition, the imprinting ink contains black iron oxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, propylene glycol and shellac glaze. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to prompt phenytoin sodium capsules with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 3.

Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-Diphenylhydantoin sodium salt, having the following structural formula: Each 200 mg or 300 mg PHENYTEK ® capsule (extended phenytoin sodium capsule, USP) for oral administration contains 200 mg or 300 mg phenytoin sodium, USP. Also contains colloidal silicon dioxide, FD&C Blue No. 1, gelatin, hydroxyethyl cellulose, magnesium oxide, magnesium stearate, microcrystalline cellulose, povidone, sodium lauryl sulfate and titanium dioxide. In addition, the imprinting ink contains black iron oxide, D&C Yellow No. 10 Aluminum Lake, FD&C Blue No. 1 Aluminum Lake, FD&C Blue No. 2 Aluminum Lake, FD&C Red No. 40 Aluminum Lake, propylene glycol and shellac glaze. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to prompt phenytoin sodium capsules with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 3. Phenytoin Structural Formula

Phenytoin Sodium Injection, USP is a sterile solution containing in each mL phenytoin sodium 50 mg, propylene glycol 0.4 mL and alcohol 0.1 mL in Water for Injection. pH 10.0-12.3; sodium hydroxide added, if needed, for pH adjustment. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is sodium 5,5-diphenyl-2,4-imidazolidinedione represented by the following structural formula: C 15 H 11 N 2 NaO 2 MW 274.25 structure

Phenytoin is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each extended phenytoin sodium capsule, USP for oral administration contains 100 mg phenytoin sodium, USP. Also contains confectioner's sugar, hypromellose, lactose monohydrate, magnesium stearate, and talc. The capsule shell contains benzyl alcohol, black ink, butylparaben, D&C Yellow #10, edetate calcium disodium, FD&C Red #3, gelatin, methylparaben, propylparaben, sodium lauryl sulfate, sodium propionate, and titanium dioxide. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules, USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. Chemical Structure

Phenytoin is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each extended phenytoin sodium capsule, USP for oral administration contains 100 mg phenytoin sodium, USP. Also contains confectioner's sugar, hypromellose, lactose monohydrate, magnesium stearate, and talc. The capsule shell contains benzyl alcohol, black ink, butylparaben, D&C Yellow #10, edetate calcium disodium, FD&C Red #3, gelatin, methylparaben, propylparaben, sodium lauryl sulfate, sodium propionate, and titanium dioxide. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules, USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2.

DESCRIPTIONS Phenytoin Sodium Injection, USP is a sterile solution containing in each mL phenytoin sodium 50 mg, propylene glycol 0.4 mL and alcohol 0.1 mL in Water for Injection. pH 10.0-12.3; sodium hydroxide added, if needed, for pH adjustment. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is sodium 5,5-diphenyl-2,4-imidazolidinedione represented by the following structural formula: C15H11N2NaO2 MW 274.25 STRUCTURE

Phenytoin Sodium Injection, USP is a sterile solution containing in each mL phenytoin sodium 50 mg, propylene glycol 0.4 mL and alcohol 0.1 mL in Water for Injection. pH 10.0-12.3; sodium hydroxide added, if needed, for pH adjustment. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is sodium 5,5-diphenyl-2,4-imidazolidinedione represented by the following structural formula: C15H11N2NaO2 MW 274.25 STRUCTURE

Phenytoin is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each extended phenytoin sodium capsule, USP for oral administration contains 100 mg phenytoin sodium, USP. Also contains confectioner's sugar, hypromellose, lactose monohydrate, magnesium stearate, and talc. The capsule shell contains benzyl alcohol, black ink, butylparaben, D&C Yellow #10, edetate calcium disodium, FD&C Red #3, gelatin, methylparaben, propylparaben, sodium lauryl sulfate, sodium propionate, and titanium dioxide. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules, USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. Chemical Structure

Phenytoin Sodium Injection, USP is a sterile solution containing in each mL phenytoin sodium 50 mg, propylene glycol 0.4 mL and alcohol 0.1 mL in Water for Injection. pH 10.0-12.3; sodium hydroxide added, if needed, for pH adjustment. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is sodium 5,5-diphenyl-2,4-imidazolidinedione represented by the following structural formula: Formula1.jpg

Phenytoin is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is 5,5-diphenyl-2,4 imidazolidinedione, having the following structural formula: Each extended phenytoin sodium capsule, USP for oral administration contains 100 mg phenytoin sodium, USP. Also contains confectioner's sugar, hypromellose, lactose monohydrate, magnesium stearate, and talc. The capsule shell contains benzyl alcohol, black ink, butylparaben, D&C Yellow #10, edetate calcium disodium, FD&C Red #3, gelatin, methylparaben, propylparaben, sodium lauryl sulfate, sodium propionate, and titanium dioxide. Product in vivo performance is characterized by a slow and extended rate of absorption with peak blood concentrations expected in 4 to 12 hours as contrasted to Prompt Phenytoin Sodium Capsules, USP with a rapid rate of absorption with peak blood concentration expected in 1½ to 3 hours. Meets USP Dissolution Test 2. Chemical Structure

Phenytoin Sodium Injection, USP is a sterile solution of 50 mg phenytoin sodium per milliliter for intravenous or intramuscular administration. The solution is in a vehicle containing 40% propylene glycol and 10% alcohol in water for injection, adjusted to pH 12 with sodium hydroxide. Phenytoin sodium is related to the barbiturates in chemical structure, but has a five-membered ring. The chemical name is sodium 5,5-diphenyl-2, 4- imidazolidinedione represented by the following structural formula: C 15 H 11 N 2 NaO 2 MW 274.25 structural formula