Dilantin 125
"What are antacids, and how do they work?
Antacids are a class of drugs used to treat conditions caused by the acid that is produced by the stomach. The stomach naturally secretes an acid called hydrochloric acid that helps to break "...
Dilantin 125
Dilantin-125®
(phenytoin oral) Suspension, USP
(FOR
ORAL ADMINISTRATION ONLY; NOT FOR PARENTERAL USE)
DRUG DESCRIPTION
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 5 ml of suspension contains 125 mg of phenytoin, USP; alcohol, USP (maximum content not greater than 0.6 percent); banana flavor; carboxymethylcellulose sodium, USP; citric acid, anhydrous, USP; glycerin, USP; magnesium aluminum silicate, NF; orange oil concentrate; polysorbate 40, NF; purified water, USP; sodium benzoate, NF; sucrose, NF; vanillin, NF; and FD&C yellow No. 6.
What are the possible side effects of phenytoin?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, depression, anxiety, or if you feel agitated, hostile, restless, hyperactive (mentally or physically), or have thoughts about suicide or hurting yourself.
Call your doctor at once if you have any of these serious side effects:
- swollen glands, easy bruising or bleeding, swollen or tender gums;
- fever, sore...
Read All Potential Side Effects and See Pictures of Dilantin 125 »
What are the precautions when taking phenytoin oral suspension (Dilantin 125)?
Before taking phenytoin, tell your doctor or pharmacist if you are allergic to it; or to other anti-seizure medications (e.g., carbamazepine, ethotoin, phenobarbital, ethosuximide, trimethadione); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: alcohol use, certain blood conditions (porphyria), diabetes, liver disease, lupus, folate or vitamin B-12 deficiency (megaloblastic anemia).
This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities...
Last reviewed on RxList: 3/20/2013
This monograph has been modified to include the generic and brand name in many instances.
Additional Dilantin 125 Information
Dilantin 125 - User Reviews
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Epilepsy
Find tips and treatments to control seizures.







