Reviewed on 8/25/2021

What Is Zaditen Used For and How Does it Work?

Zaditen is used for to treat atopic asthma in children. The brand name Zaditen is discontinued.

Zaditen is available under the following different brand names: N/A.

Dosages of Zaditen

Dosage Forms and Strengths

  • List of dosages

Dosage Considerations – Should be Given as Follows:

  • Systemic formulation not commercially available in the United States
  • Children 6 months old-3 years old: 0.05 mg/kg orally twice daily
  • Children over 3 years old: 1 mg orally twice daily
  • Start with 1/2 dose, increase to full dose within 5 days
  • Not for acute attacks
  • Not for adults

Other Indications and Uses

  • Adjunct treatment of mild atopic asthma in children


Asthma is a chronic respiratory disease. See Answer

What Are Side Effects Associated with Using Zaditen?

Side effects of Zaditen may include:

  • Weight gain
  • Rash
  • Respiratory infection
  • Abdominal pain
  • Increased appetite
  • Nosebleed
  • Puffy eyelid
  • Sleep disturbance

This document does not contain all possible side effects and others may occur. Check with your physician for additional information about side effects.

What Other Drugs Interact with Zaditen?

If your doctor has directed you to use this medication, your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor, health care provider or pharmacist first.

Zaditen has no listed severe interactions with other drugs.

Zaditen has no listed serious interactions with other drugs.

Zaditen has no listed moderate interactions with other drugs.

Zaditen has no listed mild interactions with other drugs.

This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist. Check with your physician if you have health questions or concerns.

What Are Warnings and Precautions for Zaditen?


This medication contains Zaditen. Do not take ketotifen systemic if you are allergic to Zaditen or any ingredients contained in this drug.

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center immediately.


  • Hypersensitivity
  • Sensitivity to benzoate compounds

Effects of Drug Abuse

  • No information available.

Short-Term Effects

  • See "What Are Side Effects Associated with Using Zaditen?"

Long-Term Effects

  • See "What Are Side Effects Associated with Using Zaditen?"


  • Do not reduce immediately symptomatic and prophylactic anti-asthmatic drugs (xanthine derivatives, 2-agonists, sodium cromoglycate, corticosteroids) when starting treatment with ketotifen
  • History of epilepsy
  • Perform thrombocyte counts in pts taking oral antidiabetic agents concomitantly
  • May potentiate the effects of sedatives, hypnotics, antihistamines, and alcohol

Pregnancy and Lactation

The safety of Zaditen use during pregnancy is not established. Weigh the risk/benefit. Consult your doctor.

Zaditen is secreted into breast milk. Do not use if breastfeeding.


What Is Asthma? Symptoms, Causes, and Treatments See Slideshow

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