Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or pharmacist.
• This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
• If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

What is in this leaflet
1. What LONITEN is and what it is used for
2. What you need to know before you take LONITEN
3. How to take LONITEN
4. Possible side effects
5. How to store LONITEN
6. Contents of the pack and other informaƟon

1. What LONITEN is and what it is used for
This medicine contains minoxidil, which is one of a group of medicines called ‘vasodilators’. It can be used to treat very high blood pressure (hypertension) and works by relaxing blood vessels so that blood passes through them more easily. This helps to lower blood pressure. You must talk to your doctor or pharmacist if you do not feel better or if you feel worse.

2. What you need to know before you take LONITEN
Do not take LONITEN:
• If you are allergic to minoxidil or any of the other ingredients of this medicine (listed in section 6).
• If your high blood pressure is caused by hormones from a tumour (phaeochromocytoma), usually near the kidneys.

Warnings and precautions
Talk to your doctor or pharmacist before using LONITEN:
• If you are pregnant or trying to become pregnant. • If you have heart failure (you may feel breathless, wheezy or tired and your ankles may swell up);
• If you have ever had a heart attack.
LONITEN tablets encourage salt and water to remain in your body. Too much salt and water in the body can make you feel breathless, wheezy, sick and tired, and can stop LONITEN working properly. LONITEN also makes your heart beat faster.
To avoid these problems, your doctor will prescribe two other medicines for you to take with LONITEN. One will be a water tablet (diuretic) to help your body get rid of excess water, and the other a beta-blocker or similar medicine to stop your heart beating too fast or angina pain in the chest. If your doctor gives you a low salt diet, follow it carefully.
You should weigh yourself daily and keep an accurate record of your weight while you are taking this medicine. Tell your doctor if you put on more than 1 to 1.5 kg. The cause could be extra fluid in your body. Tell your doctor if you think you have gained weight– even though it may not be due to the medicine. Your doctor will want to monitor fluid and salt (electrolyte) levels in your body.
You may recognise increased hair growth (hypertrichosis) after starting treatment, this usually emerges in the face but may subside with continued treatment. This side effect is reversible upon stopping treatment but may take one to six months.
Your doctor will want to make regular checks on your blood pressure and general health. You should also have occasional checks on your heart.
If you have an ECG test (to check the electrical activity of your heart) or any blood tests, remind your doctor that you are taking LONITEN, as it can change the results. Your doctor may monitor your blood for the very rare possibility of decreased white blood cells and platelets cells.
In some patients, inflammation of membrane around heart, fluid accumulation under the membrane around heart (cardiac tamponade) can occur. Your doctor should monitor these carefully and may try to drain the fluid or may consider stopping treatment with LONITEN.
Patients with kidney failure and undergoing haemodialysis may need smaller doses of LONITEN, which should be used with special care in these patients to maintain electrolyte balance in body.

Other medicines and LONITEN
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines, including medicines obtained without a prescription. It is particularly important you tell your doctor about any other medicine you are taking to reduce your high blood pressure. These medicines may interact with LONITEN by causing blood pressure to drop too low. In particular, tell your doctor if you are taking guanethidine or betanidine so you can be monitored whilst on treatment with LONITEN or your doctor may consider stopping these therapies before starting treatment with LONITEN.
Your doctor will tell you when and how to stop taking this medicine

Pregnancy and breast-feeding
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have baby, ask your doctor or pharmacist for advice before taking this medicine. LONITEN passes into breast milk and is not recommended if you are breast-feeding unless your doctor thinks it is necessary.

Driving and using machines
LONITEN tablets may make you feel faint or dizzy, particularly when you first start treatment or your dose is increased. If affected do not drive or operate machines

LONITEN contains lactose
This medicine contains lactose (a type of sugar). If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.

3. How to take LONITEN
Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.
Swallow LONITEN tablets whole with water.

Adults over 18 only
Noone under the age of 18 should take this tablet and the dose is 2.5 mg each day

Patients on dialysis
If you are on dialysis you may need a lower dose, even though dialysis can remove LONITEN from your blood. Do not take your tablets in the two hours before your dialysis session. Take them after the dialysis, or more than two hours before.
Rapid reduction of blood pressure LONITEN may also be given to you in hospital to reduce your blood pressure very quickly. It would be given by a doctor or nurse under strictly monitored conditions at increasing doses of 5 mg every six hours until your blood pressure is normal.
If you take more LONITEN than you should Taking too many tablets may make you unwell. If you take too many tablets, tell your doctor straight away. If you feel faint or dizzy, or your skin gets unusually cold and pale, you may need to go to hospital.
If you forget to take a dose of LONITEN Do not worry. If you forget to take a tablet, miss out the forgotten dose completely and take the next dose at the normal Ɵme. Do not take a double dose to make up for a forgotten dose.
If you stop taking LONITEN.
Do not stop taking your medicine or alter the dose you are currently taking without seeing your doctor first. LONITEN helps to control your blood pressure. If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

4. Possible side effects
Like all medicines, this medicine can cause side effects although not everybody gets them.
The following events have been reported in patients with high blood pressure being treated with LONITEN:
Contact your doctor immediately if any of the following occur
• You may feel faint or dizzy, especially when you stand up.
• Your body could hold on to more water than normal: you may notice that your ankles get puffy, or your rings get ght, or you put on weight.
• You may find that you get more wheezy, breathless and tired, especially if you already have a weak heart.
• You may notice angina (usually pains in your chest) for the first time, or if you have angina already it could get worse.
Other side effects LONITEN may cause are:
Very common: may affect more than 1 in 10 people Increased heart rate, inflammation of the lining that surrounds the heart, abnormal electrocardiogram (ECG), increased hair growth, hair colour changes.
Common: may affect up to 1 in 10 people
Accumulation of fluid around the heart, compression of the heart due to a build up of fluid, fluid retention.
Rare: may affect up to 1 in 1,000 people
Decrease in white blood cells, reduction in blood platelets, which increases risk of bleeding or bruising, serious illness with blistering of the skin, mouth, eyes and genitals (Stevens-Johnson syndrome), inflammation and blistering of the skin, rash.
Not known: frequency cannot be estimated from the available data
Accumulation of fluid between the layers of tissue that line the lungs and chest cavity, chest pains (angina), gastrointestinal disorders, swelling of the ankles, feet or fingers associated with or independent of weight gain, breast tenderness, reduced kidney function resulting in increased creatinine and urea levels in your blood.
Reporting of side effects
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 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.

5. How to store LONITEN
Keep this medicine out of the sight and reach of children.
Do not use this medicine aŌer the expiry date which is stated on the carton aŌer EXP. The expiry date refers to the last day of that month.
Bottles:
Store below 25oC.
Keep the bottle tightly closed in order to protect from moisture.
Do not throw away medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information
What LONITEN contains
The active substance is minoxidil. Each tablet contains either 2.5 mg

The other ingredients are: lactose hydrous, microcrystalline cellulose, starch, colloidal silicon dioxide and magnesium stearate (see section 2 LONITEN contains lactose).
What LONITEN looks like and the contents of the pack LONITEN are round white to light tan biconvex tablets.
They are available in strengths of 2.5 mg
The 2.5 mg tablet is imprinted with ‘2 ½’ on one side, scored on the reverse with a ‘U’ on one side of the score and ‘121’ on the other side.
Not all pack sizes may be marketed.
Marketing Authorisation Holder
Pfizer Limited, Ramsgate Road, Sandwich, Kent, CT13 9NJ, United Kingdom.
Manufacturer
Pfizer Service Company BV, 10 Hoge Wei 10, Zaventem, 1930, Belgium.
Company Contact Address
For further information on your medicine, please contact Medical Information at Pfizer
Limited, Walton Oaks, Tadworth, Surrey, KT20 7NS. Tel: 01304 616161
This leaflet was last revised in 01/2022.