No such side effect has been documented as far as I have researched. Although it can not be ruled out, as side effects listings are not always complete , and new possible side effects may develop.-
I suggest that if you are having sexual problems you speak to your doctor asap.-
For future reference a list of possible side effects:
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 throat, and headache with a severe blistering, peeling, and red skin rash;
the first sign of any skin rash, no matter how mild;
confusion, hallucinations, unusual thoughts or behavior;
slurred speech, loss of balance or coordination;
tremor (uncontrolled shaking), restless muscle movements in your eyes, tongue, jaw, or neck;
extreme thirst or hunger, urinating more than usual;
loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); or
changes in the shape of your face or lips.
Less serious side effects may include:
mild skin rash or itching;
dizziness, nervousness, sleep problems (insomnia);
nausea, vomiting, constipation; or
headache, joint pain.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
- Phenytoin Information for Consumers
- Phenytoin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Phenytoin (detailed)
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