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A 35-year-old female asked:

how long can epinephrine affect your heart?

1 doctor answer4 doctors weighed in
Dr. Joseph Mele
Plastic Surgery 32 years experience
A few minutes: The half-life of Epinephrine is about 2 minutes. We constantly release small amounts. This is increased by the "fight or flight" reflex, and when administered medically. The most common use is in local anesthesia, and the effects wear off quickly.

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A 52-year-old member asked:

How does epinephrine affect the heart?

2 doctor answers5 doctors weighed in
Dr. Quang Nguyen
Specializes in Endocrinology
Increase rate: Epineprines bind to b1 receptor on the heart and increase heart rate.
A 37-year-old member asked:

How can adrenaline affect the heart?

1 doctor answer1 doctor weighed in
Dr. Calvin Weisberger
Cardiology 51 years experience
Adrenaline: It increases the rate and force of contraction. It also causes vasoconstriction so blood pressure increases.
A 45-year-old member asked:

Does having too much adrenaline cause physical damage to the heart?

1 doctor answer1 doctor weighed in
Dr. David Sneid
Endocrinology 41 years experience
In excess: But you don't have any way of reaching those levels without a rare endocrine malignancy. See the "adrenaline rush" blog for more information.
United Kingdom
A 65-year-old female asked:

Worried about constant adrenaline rushes. Will they damage my heart?

1 doctor answer1 doctor weighed in
Dr. Bennett Werner
Cardiology 44 years experience
?: If they're coming from your adrenal gland, they won't hurt your heart. Unless you have a pheochromocytoma. That occurs with an incidence of about 1 in 1,000,000.

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Last updated Jan 4, 2015

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