The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Drowsiness
- Tiredness
- Dizziness
- Feeling like the room is spinning (vertigo)
- Problems with movement or coordination
Less Common Side Effects
- Nausea
- Vomiting
- Poor appetite
- Feeling irritable
- Feeling emotional or having mood swings
- Sexual dysfunction
- Double vision
- Eye twitching
- Rash
- Low blood cell counts
Primidone serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Suicidal behavior or thoughts of self-harm
- Low blood cell counts: frequent fevers, chills, weakness, tiredness, trouble breathing, unusual or easy bruising or bleeding
Source: DailyMed
The following Primidone side effects have also been reported
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
More common
Shakiness and unsteady walk
unsteadiness, trembling, or other problems with muscle control or coordination
Less common
Unusual excitement or restlessness (especially in children and in the elderly)
Rare
Chills
cough or hoarseness
fainting spells
fever and sore throat
fever with or without chills
general feeling of tiredness or weakness
irregular heartbeat
lower back or side pain
painful or difficult urination
pale skin
shortness of breath
skin rash
sores, ulcers, or white spots on the lips or in the mouth
unusual bleeding or bruising
unusual tiredness or weakness
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Confusion
continuous, uncontrolled rolling eye movements
double vision
troubled breathing
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
Clumsiness or unsteadiness
dizziness or lightheadedness
feeling of constant movement of self or surroundings
sensation of spinning
Less common
Decreased sexual ability
drowsiness
loss of appetite
mood or mental changes
nausea or vomiting
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
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