Patient Leaflet Updated 15-Oct-2025 | Roma Pharmaceuticals Limited
Phentolamine Inj PIL
Phentolamine mesilate 10 mg/ml solution for injection
Phentolamine mesilate
1. What Phentolamine solution for injection is and what it is used for
2. What you need to know before you use Phentolamine solution for injection
3. How to use Phentolamine solution for injection
4. Possible side effects
5. How to store Phentolamine solution for injection
6. Contents of the pack and other information
The active substance in Phentolamine mesilate 10 mg/ml solution for injection (called Phentolamine solution for injection in this leaflet) is phentolamine. It belongs to a group of medicines called alpha blockers. These medicines lower high blood pressure by relaxing blood vessels.
Phentolamine solution for injection can be used in the following cases:
Ask your doctor if you are not sure why Phentolamine solution for injection is going to be used for you.
Talk to your doctor or pharmacist before using this medicine:
This medicine can be used in children and adolescents up to 18 years of age.
Tell your doctor or pharmacist if you are using, have recently used or might use any other medicines. This applies especially to other blood pressure−lowering medicines and medicines for the treatment of certain mental and emotional disorders.
If you are pregnant or breast−feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine. Your doctor will inform you about the benefits and risks and decide whether Phentolamine solution for injection can be used for you.
Also talk to your doctor if want to breast−feed. Phentolamine solution for injection is not advised for use in breast−feeding women.
Phentolamine solution for injection may cause dizziness or other side effects. Do not drive or use machines if this happens to you. If so, contact your doctor.
In rare cases, sodium metabisulphite can cause severe hypersensitivity reactions and shortness of breath due to spasm of the muscles of the airways (bronchospasm).
This medicine contains less than 1 mmol sodium (23 mg) per each 1 ml ampoule, that is to say essentially ‘sodium−free’.
This medicine is for use in hospitals and will be given by a doctor or nurse as an injection.
Your doctor will determine the dose.
Your doctor will decide the duration of the treatment.
This medicine is given to you by your doctor or nurse. It is unlikely that you will be given too much. Your doctor will carefully work out how much you should be given.
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.
Very common: (may affect more than 1 in 10 people)
Common: (may affect up to 1 in 10 people)
Uncommon: (may affect up to 1 in 100 people)
If you get any side effects, talk to your doctor 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 at: 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.
Store in the original package in order to protect from light.
Store in a refrigerator (2˚C − 8˚C).
Do not freeze.
Do not use this medicine after the expiry date which is stated on the carton after “EXP”. The expiry date refers to the last day of that month.
Clear, colourless solution, virtually free from visible particles.
Each pack of Phentolamine solution for injection contains 5 single use ampoules of 1 ml.
Marketing Authorisation Holder
Manufacturer
This leaflet was last revised in August 2025.
For information in other formats contact medinfo@ romapharma.co.uk
Gibraltar House, Crown Square, First Avenue, Centrum 100, Burton upon Trent, Staffordshire, DE14 2WE
http://www.romapharma.co.uk/