epinephrine (Injection route)Pronunciation
Commonly used brand name(s)
In the U.S.
- Adrenalin Chloride
- Epipen Jr
Available Dosage Forms:
Therapeutic Class: Anaphylaxis Agent
Pharmacologic Class: Adrenergic
Chemical Class: Alkylarylamine
Uses For epinephrine
Epinephrine injection is used for emergency treatment of severe allergic reactions (including anaphylaxis) to insect bites or stings, medicines, foods, or other substances. It is also used to treat anaphylaxis caused by unknown substances or triggered by exercise.
epinephrine is available only with your doctor's prescription.
Before Using epinephrine
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For epinephrine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to epinephrine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
No information is available on the relationship of age to the effects of epinephrine injection in the pediatric population. Safety and efficacy have not been established.
No information is available on the relationship of age to the effects of epinephrine injection in geriatric patients. However, elderly patients are more likely to have age-related heart disease which may require caution in patients receiving epinephrine injection.
|All Trimesters||C||Animal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.|
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking epinephrine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using epinephrine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
Using epinephrine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Using epinephrine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of epinephrine. Make sure you tell your doctor if you have any other medical problems, especially:
- Angina pectoris (severe chest pain) or
- Asthma or
- Blood vessel problems or
- Depression, history of or
- Diabetes or
- Heart attack or
- Heart disease (e.g., coronary artery disease, organic heart disease) or
- Heart rhythm problems (e.g., arrhythmia) or
- Hypertension (high blood pressure) or
- Hyperthyroidism (overactive thyroid) or
- Parkinson's disease—Use with caution. May make these conditions worse.
Proper Use of epinephrine
Use epinephrine only as directed by your doctor. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered.
If you are using epinephrine at home, make sure you or any of your family members understand exactly how to give them. Also, tell your doctor if you or your caregiver has severe arthritis of the hands. If you have any questions about this, check with your doctor.
epinephrine is injected into the muscle of your outer thigh only. Do not inject epinephrine into a vein or into the muscle of your buttocks. To do so, may increase the chance of having serious side effects.
epinephrine comes with patient instructions. Read and follow these instructions carefully. Ask your doctor if you have any questions.
epinephrine comes in an autoinjector syringe and needle kit that contains the correct dose of medicine your doctor has prescribed.
epinephrine comes with an EpiPen® autoinjector trainer and a separate trainer instructions for use. Be sure to practice first with your autoinjector trainer before an allergy emergency happens to make sure you are ready to use the real EpiPen® and EpiPen Jr® autoinjector in an actual emergency. The EpiPen® autoinjector trainer has a grey color and does not contain any medicine or needle.
Do not remove the blue safety release on the autoinjector until you are ready to use it.
You may need to use more than one injection if your allergic reaction does not get better after the first shot.
Carry epinephrine with you at all times for emergency use in case you have a severe allergic reaction.
Check the injection kits regularly to make sure that the liquid has not changed its color. Do not use epinephrine if the liquid has changed its color, or if there are solids in the liquid.
Do not reuse the remaining portion of the medicine that is left in the autoinjector. Throw away the autoinjector after you have used it.
The dose of epinephrine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of epinephrine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For injection dosage form:
- For allergic reactions:
- Adults and children weighing more than 30 kilograms (66 pounds)—0.3 milligram (mg) injected under the skin or into the muscle of your thigh.
- Adults and children weighing 15 to 30 kilograms (33 to 66 pounds)—0.15 mg injected under the skin or into the muscle of your thigh.
- Children weighing less than 15 kg—Use and dose must be determined by your doctor.
- For allergic reactions:
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Store the injection kits at room temperature, away from heat, moisture, and direct light. Do not store the medicine in the refrigerator or freezer, or into your vehicle's glove box.
Keep the autoinjector in its case or carrier tube to protect from damage. However, this tube is not waterproof. If you accidentally drop it, check for damage or leakage.
Precautions While Using epinephrine
If your symptoms do not improve or if they become worse, check with your doctor.
Anaphylaxis is a life-threatening reaction and requires immediate medical attention. Check with your doctor right away, or go to an emergency room as soon as possible, even if you feel better after using epinephrine.
epinephrine may affect blood sugar levels. If you notice a change in the results of your blood or urine sugar tests or if you have any questions, check with your doctor.
Do not inject epinephrine into your hands or feet. There is already less blood flow to the hands and feet, and epinephrine could make that worse and cause damage to these tissues. If you accidentally inject epinephrine into your hands or feet, check with your doctor or go to the hospital emergency room right away.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
epinephrine Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:Incidence not known
- Abnormal or decreased touch sensation
- arm, back, or jaw pain
- bleeding, blistering, burning, coldness, discoloration of the skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
- blurred vision
- chest pain or discomfort
- chest tightness or heaviness
- fast, irregular, pounding, or racing heartbeat or pulse
- fear or nervousness
- nausea or vomiting
- paleness of the skin
- pounding in the ears
- shakiness in the legs, arms, hands, or feet
- shortness of breath
- slow or fast heartbeat
- trembling or shaking of the hands or feet
- troubled breathing
- unusual tiredness or weakness
Get emergency help immediately if any of the following symptoms of overdose occur:Symptoms of overdose
- coldness of the skin
- decreased urine output
- lightheadedness, dizziness, or fainting
- muscle twitching
- pounding, slow heartbeat
- rapid weight gain
- rapid, deep breathing
- stomach cramps
- swelling of the face, ankles, or hands
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
See also: epinephrine Injection side effects (in more detail)
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