Epi increases your heart rate, and for some people this can be dangerous... if this happens to you, request an anesthetic that does not have epi in it, like carbocaine or polocaine for example.
What is Epinephrine sensitivity? This has developed during dental procedures. Is this dangerous?
Epinephrine (also known as adrenaline), is produced by the adrenal glands in response to stress and is sometimes called the “fight or flight” hormone. Epinephrine is used in a lot of local anesthetics in dentistry to make the effects of the anesthetic longer by constricting the blood vessels to prolong the numbing action. Some people are sensitive, this causes increased heart rate, stronger heartbeat, and a feeling of nervousness or anxiousness. You feel a "rush" after getting the injection. I wouldn't say it isn't extremely dangerous (depending on your medical situation), but it can cause you to be uncomfortable. You can tell your dentist you dont want epinephrine in your anesthetic. Lidocaine, xylocaine, prilocaine and mepivicaine (Isocaine) are common local anesthetics that are available without epinephrine. But they wear off much faster. This is fine for short procedures like extractions, or fillings.
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