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  • Basic Info
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Generic: nitroglycerin
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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?

This does not apply. This medicine is only used as needed.

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.

Keep this medicine with you at all times. Sit or lie down when you take your medicine to prevent falling if you feel dizzy or faint after using it. Try to remain calm. This will help you to feel better faster. If you feel dizzy, take several deep breaths and lie down with your feet propped up, or bend forward with your head resting between your knees.

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:
  • blurred vision
  • dry mouth
  • skin rash
  • 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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