Patient Leaflet Updated 10-Jan-2024 | ADVANZ Pharma
Phenylephrine Injection BP 10 mg/ml
Phenylephrine 10 mg/ml Injection
phenylephrine hydrochloride
1. What Phenylephrine Injection is and what it is used for
2. What you need to know before you are given Phenylephrine Injection
3. How Phenylephrine Injection is given to you
4. Possible side effects
5. How to store Phenylephrine Injection
6. Contents of the pack and other information
The name of your medicine is Phenylephrine 10 mg/ml Injection (called Phenylephrine Injection in this leaflet). Its active ingredient is phenylephrine hydrochloride.
Each 1 ml ampoule contains 10 mg of phenylephrine hydrochloride in purified water, Phenylephrine belongs to a group of medicines called anti-hypotensive drugs.
Phenylephrine Injection is used in adults and children to relieve low blood pressure which may occur during an operation of after an injury.
Talk to your doctor, pharmacist or nurse before you are given Phenylephrine Injection
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
Tell your doctor if you have taken antidepressants (either currently or within the last 14 days)
Tell your doctor if you have taken tablets for heart problems or high blood pressure.
Phenylephrine may interact with some drugs used as general anaesthetics, but your doctor will be fully prepared to deal with this should it occur.
Phenylephrine may interact with a drug used to treat attention-deficit hyperactivity disorder (ADHD) called atomoxetine.
Phenylephrine may also interact with drugs called antimuscarinics (e.g. atropine.)
Lithium (a drug used for depression or aggression) may effect how phenylephrine works.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
The safety of phenylephrine during pregnancy and breast-feeding has not been established.
Phenylephrine Injection should not affect your ability to drive. As with all medicines, if you feel unwell you must speak to your doctor or nurse before driving or operating machinery.
This medicine contains less than 1 mmol sodium (23 mg) per ml, that is to say essentially ‘sodium-free’.
As Phenylephrine Injection is given by injection, the doctor will administer it to you.
Adults: The dose depends on the way it is given, e.g. if injected into a muscle or just under the skin, the recommended dose is 2 to 5 mg. If injected directly into a vein, this is carried out slowly using a more dilute solution of up to 10 mg.
The recommended dose is 100 micrograms per kilogram of body weight, injected into a muscle or just under the skin.
It is unlikely that you will be given too much Phenylephrine Injection; however should an overdose occur the doctor will treat any symptoms that follow. Symptoms of overdose include headache, feeling sick, high blood pressure, a fast or irregular heart beat, confusion, hallucinations and fits..
If you have any further questions on the use of this medicine, ask your doctor or nurse.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Tell your doctor or nurse if you experience serious allergic reaction with symptoms such as itching/ rash, swelling of your face, lips or throat or difficulty in breathing/ wheeziness.
Tell your doctor or nurse if you experience other side effects of Phenylephrine Injection which may include:
Not known: frequency cannot be estimated from the available data
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
KEEP THIS MEDICINE OUT OF THE SIGHT AND REACH OF CHILDREN.
Phenylephrine Injection will be stored either in a refrigerator or at room temperature (2°C – 25°C), protected from light, until it is given to you. The doctor or nurse will check that the expiry date on the label has not passed before you are given the injection.
Phenylephrine Injection is a clear, colourless or slightly brown solution. It is available in 1 ml glass ampoules, in packs containing either 6 or 10 ampoules. Not all pack sizes may be marketed.
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This leaflet does not contain the complete information about your medicine. If you have any questions or are not sure about anything, ask your doctor who has access to additional information.
This leaflet was last revised in December 2023.
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