Ketotifen: Administration, Side Effects, Precautions, Overdose and Storage

It is a drug that is used to decrease the frequency and levels of asthma condition but it is not as effective when the attacks remain active regularly.

The Asthma is a very common or recurrent disease in society, in most cases is chronic and is extremely dangerous if not controlled because it affects the airways, which causes great difficulty breathing.

This condition usually inflames the air passages where it passes and oxygen resulting in a temporary narrowing or narrowing of the channels or ducts. The symptoms or characteristic of an asthma attack are:

  • Chest tightness.
  • Whistle from the throat passage when trying to breathe.
  • Difficulty or decrease of breathing.
  • In some cases it can hinder speech.

Asthma can be controlled and allow a quiet life but if it is not treated or if the treatment is not followed as indicated by the specialist doctor, it may limit the performance of sports activities or exercises.


This medication can be taken twice a day or as recommended by the treating doctor. To obtain optimal results the patient can not skip the daily doses, so it is recommended to maintain a routine in the schedule of the intake of the dose.

Ketotifen should not be crushed before taking it, otherwise it may decrease its effectiveness or lose part of the dosage.

If the affected person has a nervous or chronic asthma, it is likely that the doctor will increase the dose slowly while the organism adapts to the components of the drug. The desired results may occur after several weeks of treatment.

Side effects

Ketotifen does not usually generate serious side effects or that threaten the life or health of the patient, however, it can generate:

  • Dizziness until the body adapts to the dosage.
  • Constant somnolence or difficulty to acquire sleep.
  • Symptoms that resemble a common flu.

In case that after several weeks the patient does not stop presenting these conditions, he should notify his specialist doctor, because he may have to reduce the dose of the treatment.

On the other hand, if you regularly present the following conditions, you should stop treatment or contact your treating doctor quickly to investigate the causes before continuing to take Ketotifen:

  • Constant pain in the stomach.
  • Increase or decrease in weight sharply.
  • Skin rash
  • Acne.
  • Unusual bleeding that can become a hemorrhage.
  • Chronic nervousness
  • Constant irritability


Ketotifen is an invasive medication in the body that is responsible for preventing or reducing asthma attacks, that is why before starting a treatment, the affected should tell his doctor if he has suffered from other diseases prior to asthma.

It is also important to indicate what other medications have been used to combat this condition or if you have had allergies while you are in dosing to prevent future altercations.

It is recommended to avoid the consumption of alcoholic beverages, because they are not compatible with the drug and can cause the activation of side effects.

While the patient is starting treatment with Ketotifen should avoid driving or perform activities of high concentration, because sometimes this medication can cause drowsiness, which represents a danger to the person under treatment because he could fall asleep without realizing it.

In the case of pregnant women, they should ingest this drug only if it is strictly necessary, because it can produce adverse effects to the unborn baby.

In the same way it can not be ingested by women in breastfeeding period, because the medicine can pass into breast milk and have counterproductive or risky effects on the baby.


In general, this medication can rarely produce an overdose when consumed in treatment and under the supervision of a specialist, however the patient should immediately contact his treating doctor if he presents:

  • Confusion or disorientation.
  • Difficulty to convey or think clearly about an idea.
  • Cold sweating or chills.
  • Babbling or difficulty speaking.
  • Cardiac arrhythmia .
  • Fainting or loss of consciousness.
  • Convulsions


This medicine should be kept under a room temperature, it is not necessary to refrigerate it and it should be in places of little or no sunlight as well as humidity.

It is important to keep out of the reach of small children or pets, because it can harm them to consume without apparent prescription.