Allergies Home > Nasarel Warnings and Precautions

Before you start using Nasarel, warnings and precautions for the drug should be fully understood. The medication is a steroid that can suppress the body's ability to make natural steroids. It can also suppress the immune system and put you at higher risk for infections. Nasarel warnings and precautions also include people who are allergic to any components of the nasal spray.

Nasarel: What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to taking Nasarel™ (flunisolide nasal solution) if you have:
  • Tuberculosis, herpes, or any other infections
  • Not had chickenpox or the measles (and have not been vaccinated against them)
  • Recently had nasal surgery
  • Sores or injury to the inside of your nose
  • A nasal infection
  • Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
  • Pregnant or thinking of becoming pregnant
  • Breastfeeding.
Make sure to tell your healthcare provider about all medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.

Specific Nasarel Warnings and Precautions

Some warnings and precautions to be aware of prior to taking Nasarel include the following:
  • It can take as long as two weeks before Nasarel starts working in some people. If your symptoms do not improve within three weeks, you should contact your healthcare provider.
  • Nasarel can suppress the body's ability to make natural steroids. Usually, this happens when too much Nasarel is taken. In such circumstances, the medication should be stopped slowly to give your body a chance to begin making natural steroids again.
  • If you are switching from an oral steroid to Nasarel (which is a nasal steroid), your healthcare provider should slowly decrease your dose of the oral steroid. Stopping an oral steroid too quickly can be dangerous.
  • As mentioned, Nasarel is a steroid and may suppress the immune system. Although this is more likely to occur with oral steroids, it is still possible with nasal steroids such as Nasarel. Taking steroids may put you at a higher risk for infections. Certain infections (such as chickenpox or the measles) may be more dangerous if you are taking Nasarel. Let your healthcare provider know right away if you are exposed to chickenpox or the measles, especially if you have not had these infections and have not been vaccinated against them. In rare cases, Nasarel can lead to yeast infections in the nose and throat as a result of suppression of the immune system.
  • Like all steroids, Nasarel may slow down the growth rate of children and teenagers. Contact your child's healthcare provider if you are concerned about a slow growth rate in your child.
  • Before starting Nasarel, be sure to tell your healthcare provider if you currently have any type of infection. Also let your healthcare provider know if you have ever had tuberculosis or a herpes infection of the eye, as Nasarel may weaken the immune system, allowing these infections to become worse.
  • Corticosteroids such as Nasarel can delay healing. Therefore, if you have had recent nasal surgery or nasal sores, you should wait until healing has occurred before taking Nasarel. Also, corticosteroids can cause nosebleeds and nasal sores or irritation.
  • Nasarel can potentially interact with other medications (see Nasarel Drug Interactions).
  • Nasarel is considered a pregnancy Category C medication. This means that it may not be safe for use during pregnancy, although the full risks are not currently known (see Nasarel and Pregnancy).
  • It is unknown whether Nasarel passes through breast milk. Therefore, if you are breastfeeding or plan to start, discuss this with your healthcare provider prior to taking the drug (see Nasarel and Breastfeeding).
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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