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  • Basic Info
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Generic: nitroglycerin topical
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It relaxes blood vessels, increasing the blood and oxygen supply to your heart
               



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What if I miss a dose?

If you miss a dose, use it as soon as you can. If it is almost time for your next dose, use only that dose. Do not use double or extra doses.

What may interact with this medicine?

Do not take this medicine with any of the following medications:
  • certain migraine medicines like ergotamine and dihydroergotamine (DHE)
  • medicines used to treat erectile dysfunction like sildenafil, tadalafil, and vardenafil

This medicine may also interact with the following medications:

  • alteplase
  • aspirin
  • heparin
  • medicines for high blood pressure
  • medicines for mental depression
  • other medicines used to treat angina
  • phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine

What should I watch for while using this medicine?

Tell your doctor or health care professional if you feel your medicine is no longer working.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.

Do not treat yourself for coughs, colds, or pain while you are taking this medicine without asking your doctor or health care professional for advice. Some ingredients may increase your blood pressure.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:
  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • blurred vision
  • dry mouth
  • skin irritation from ointment
  • sweating
  • the feeling of extreme pressure in the head
  • unusually weak or tired

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • flushing of the face or neck
  • headache
  • irregular heartbeat, palpitations
  • nausea, vomiting

               
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