NitroMist Warnings and Precautions

Before using NitroMist, let your healthcare provider know about any other medical issues you may have, such as anemia, dehydration, or any allergies. This medicated mouth spray can also cause drug interactions, so talk to your healthcare provider about any other medications you are taking, as well as your alcohol consumption. Other precautions and warnings with NitroMist apply to women who are pregnant or breastfeeding.

What Should I Tell My Healthcare Provider?

You should talk with your healthcare provider prior to using NitroMist® (nitroglycerin spray) if you have:
  • Low blood pressure (hypotension)
  • Dehydration
  • Anemia
  • Increased intracranial pressure (high pressure in the brain)
  • Any allergies, including to foods, dyes, or preservatives.
Also, let your healthcare provider know if you are:
  • Pregnant or thinking of becoming pregnant
  • Breastfeeding.
You should also tell your healthcare provider about all other medications you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.

Specific Precautions and Warning With NitroMist

Some warnings and precautions to be aware of prior to using this angina medication include the following:
  • Do not use NitroMist more frequently or at a higher dose than absolutely necessary. Using it too often can result in a tolerance to the drug, which means your body becomes accustomed to it and no longer responds to the medication.
  • If you have used three sprays of NitroMist within 15 minutes and you still have chest pain, seek immediate medical attention. You may be having a heart attack.
  • NitroMist can sometimes cause dangerously low blood pressure (hypotension). Alcohol or certain other medications can make this worse (see NitroMist Drug Interactions for more information). People who already have low blood pressure or who are dehydrated are particularly at risk for this complication.
  • NitroMist often causes headaches. If the headaches become intolerable, talk with your healthcare provider.
  • This medication does not work for all types of chest pain (angina). If your chest pain gets worse when you use NitroMist, let your healthcare provider know right away.
  • Some people may be allergic to NitroMist. Let your healthcare provider know if you develop any signs of an allergic reaction, such as:
    • Hives
    • Itching
    • Unexplained swelling
    • Difficulty breathing.
  • This product is a pregnancy Category C medication, which means that it may not be safe for use during pregnancy, although the full risks are currently unknown (see NitroMist and Pregnancy for more information).
  • It is unknown if NitroMist passes through breast milk. Therefore, if you are breastfeeding or plan to start, check with your healthcare provider or your child's healthcare provider before using this medicine (see NitroMist and Breastfeeding).
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NitroMist Medication Information

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