Phenytoin: Precautions and warnings

Phenytoin is prescribed in order to control the seizures (convulsions) in the treatment of epilepsy. It is also recommended for preventing and treating seizures that occur during brain surgery. This medication is an anticonvulsant that acts in the brain tissue to control seizures.

Phenytoin comes in the form of tablets to take by mouth, capsule and suspension to take by mouth, with food.

It comes as a solution for injection to be given by a doctor into the vein. This medicine exist only with your healthcare practitioner's prescription.

Precautions:

  • For buying phenytoin you must go with the Licensed pharmacies/wholesalers.
  • When buying this medicine online, you must only buy from pharmacies/wholesalers that request for a genuine prescription. 
  • Prior to making any purchase of phenytoin from a specific online pharmacy/wholesaler, it is important to confirm its credibility.
  • The chosen pharmacy/wholesaler must have a well-qualified pharmacist in order to answer. 
  • Don't buy this medicine at extremely low prices. Very low price of this drug may be a sign of a fake phenytoin. 
  • Self-medication needs to be strictly avoided. 
  • Do not accept phenytoin if you find packaging damaged/puffed up.
  • Do not accept phenytoin if it doesn't look authentic. 

Warnings:

  • Phenytoin is not for treating seizures due to the hypoglycaemia or other metabolic causes.
  • This drug should be given slowly, given at faster rates may result in impaired cardiac conduction, cardiac arrhythmias, hypotension, CNS depression.
  • Intramuscular administration of this drug is not recommended because of the erratic absorption and local tissue reactions. 
  • Angioedema may occur in patients with the phenytoin 100 mg. Therapy should be interrupted if signs of angioedema, such as facial, perioral, or upper airway swelling appears. 
  • This medicine may increase the risk of suicidal thoughts or behaviour. 
  • Liver damage and toxic hepatitis may occur and can be fatal.
  • Pregnancy is not recommended while on phenytoin therapy. 
  • Infant breast-feeding must be avoided for women with this drug because phenytoin appears to be secreted in low concentrations in the breast milk.


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