Before Using

Drug information provided by: IBM Micromedex

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:


Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.


Appropriate studies have not been performed on the relationship of age to the effects of malathion topical in children younger than 6 years of age. Safety and efficacy have not been established. However, use of this medicine in newborn and infants younger than 1 year of age is not recommended.


No information is available on the relationship of age to the effects of malathion topical in geriatric patients.

Drug Interactions

Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.

Other Interactions

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.

Other Medical Problems

The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:

  • Anemia, severe or
  • Brain surgery, recent or
  • Liver disease or
  • Malnutrition—These conditions may increase the chance of some side effects of malathion.
  • Asthma or
  • Epilepsy or other seizure disorders or
  • Heart disease or
  • Myasthenia gravis or other nerve-muscle disease or
  • Parkinson's disease or
  • Stomach ulcer or other stomach or intestinal problems—May make these conditions worse.