Seldane is an antihistamine drug and has been banned in 1998 from U.S. market. It is used for treatment of runny nose, itching and watering of the eyes. It also prevents sneezing. It is used for treatment of allergic reactions such as hives, inflammation and other allergic symptoms. Doctors prescribe it for other purposes too, which are not listed in medical guide based on their clinical judgment. Seldane mainly contains terfenadine as main active ingredient. It is oral tablet, which contains 60mg terfenadine in each tablet. Terfenadine belongs to histamine H1-receptor antagonist group of drugs.

Side Effects of Seldane

Use of Seldane could lead to many side effects. It has been banned from U.S. market due to safety concerns in 1998. It could produce some less harmful side effects, which are not worrisome. It could also cause many severe side effects patients are advised to immediately call their doctor if any unusual or serious side effects occur.

Less Serious Side Effects of Seldane

Seldane could produce following less harmful side effects. If any of these symptoms persists or becomes chronic, it is advisable to immediately call your doctor.

  • Drowsiness
  • Dizziness
  • Headache;
  • Nervousness;
  • Nausea
  • Diarrhea
  • Stomach discomfort
  • Dry mouth
  • Dry skin
  • Itching
  • It could cause allergic reactions such as breathing problems; closed throat; swelling of lips, tongue, or face; or hives, which could subside shortly.
  • Irregular heartbeats, which could subside with time

Serious Side Effects of Seldane

Use of Seldane could cause many severe side effects. One should immediately call the doctor if you develop any of these severe side effects.

  • It could cause allergic reactions such as difficulty in breathing; closing of throat; swelling in lips, tongue, or face; or hives. They could worsen, if left untreated, thus call your doctor if you develop any allergic reaction.
  • Use of Seldane could lead to irregular heartbeat, which could be a symptom of any serious heart problem. Immediately call your doctor, if you develop irregular heartbeats.
  • Its use could cause seizures.
  • Its use could lead to persistent dizziness or drowsiness.
  • Its use could also lead to persistent stomach problems. It could lead to chronic diarrhea, nausea or vomiting. It could also cause stomach discomfort.
  • It could cause abnormal beating of the heart when it has been combined with Ketoconazole and Itroconazole. This condition after using these combinations of drugs could even cause death.
  • If used with Erythromycin and grapefruit juice it could yield fatal results.
  • Overdose of terfenadine could slow down power generation in the heart muscle after each heartbeat. If this recharging of heart muscles becomes very slow, it could lead to dangerous abnormal heart rhythm. Its results could be fatal.
  • If taken with other medicines for heart disease, which could cause delay in the recharging of the heart muscle, it could yield fatal results.
  • If taken by patients having rare similar abnormality of the heart muscle, terfenadine could worsen the condition and could even lead to death.