Heart Disease Home > Nitrostat Warnings and Precautions
People who have anemia or low blood pressure may not be able to safely use Nitrostat. Other warnings and precautions involve talking to your healthcare provider before using this product if you are pregnant or breastfeeding and discussing possible drug interactions that may affect you. Understanding these safety issues before using this angina medicine can help ensure a safe treatment process.
What Should I Tell My Healthcare Provider?You should talk with your healthcare provider prior to using Nitrostat® (nitroglycerin tablets) if you have:
- Low blood pressure (hypotension)
- Increased intracranial pressure (high pressure within the skull)
- Any allergies, including to foods, dyes, or preservatives.
- Pregnant or thinking of becoming pregnant
Specific Precautions and Warnings With NitrostatSome warnings and precautions to be aware of prior to using this angina medication include the following:
- If you have used 3 Nitrostat tablets within 15 minutes and you still have chest pain, it is time to seek immediate medical attention. You may be having a heart attack.
- Do not use Nitrostat 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.
- Nitrostat can sometimes cause dangerously low blood pressure (hypotension). Alcohol or certain other medications can make this worse (see Nitrostat Drug Interactions for more information). People who already have low blood pressure or who are dehydrated are particularly at risk for this complication.
- Nitrostat 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 Nitrostat, let your healthcare provider know right away.
- Some people may be allergic to Nitrostat. Let your healthcare provider know if you develop any signs of an allergic reaction, such as:
- 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 Nitrostat and Pregnancy for more information).
- It is unknown if Nitrostat 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 Nitrostat and Breastfeeding).