Both the drugs and Telfast are one and the same. The manufacturer Sanofi Aventis sells the same medication but under different names; Allegra in the US and Telfast in the UK.
Allegra dosage
The normal dosage of Allegra or Telfast is one tablet twice a day with the strength to be decided by your doctor.
You should take it with a full glass of water or as directed by your doctor. You can take this medicine with or without food.
If Allegra does not relieve your symptoms, do not take extra tablets. Tell your doctor or pharmacist about it. Taking more dose than recommended does not mean faster and better results. It is not advisable to take extra dose as it will only increase the chances of side effects.
Allegra should not be taken by children below the age of 12 years as there is currently insufficient information available about its safety in this age group.
Side effects of Allegra
Side effects of Allegra or Telfast are headache, tiredness, nausea and indigestion. These same effects were seen in patients taking placebo treatment during clinical studies.
Allegra/Telfast precautions
Do not take Allegra or Telfast if you have had an allergic reaction to fexofenadine terfenadine (Teldane) or any of the other ingredients in Allegra. Please tell your doctor about all your allergies before taking Allegra.
Seasonal allergic rhinitis is an acute condition. You should seek the advice of your doctor or pharmacist if you need more than 14 days of continuous Allegra treatment.
