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The product code(s) for this leaflet is: PL 45043/0057.
Nardil 15 mg film-coated tablets
Nardil 15 mg film-coated tablets
phenelzine
1. What Nardil is and what it is used for
2. What you need to know before you take Nardil
3. How to take Nardil
4. Possible side effects
5. How to store Nardil
6. Contents of the pack and other information
Nardil contains the active ingredient phenelzine, which belongs to a group of medicines called monoamine oxidase inhibitors, or MAOIs.
Nardil is used to treat certain types of depression. It works by changing the way messages are sent from one nerve to another in the brain. Nardil is especially helpful when:
If any of these apply to you, tell your doctor or pharmacist before taking Nardil. It is important to wait between using certain medicines and starting Nardil, read section 2 “Other medicines and Nardil” carefully.
Talk to your doctor or pharmacist before taking Nardil
Your blood pressure should be monitored frequently by your doctor and Nardil should be stopped if palpitations or frequent headaches occur.
Please tell your doctor, dentist or pharmacist if you are taking, have recently taken or might take any other medicines.
In particular, tell your doctor if you are taking any of the following medicines, because Nardil may interact with them:
If you are not sure which medicines you are already taking, please ask your doctor or pharmacist.
Nardil reacts with a substance called tyramine which is found in some foods and drinks (see lists below).
If you eat or drink anything containing tyramine while you are taking Nardil, or within 14 days of taking Nardil, you may have a very severe rise in blood pressure.
This will happen soon after eating the food and you may get a violent headache, pounding heart, stiff neck, flushing, sweating or you may be sick. The severity of the reaction depends on the amount of tyramine you eat and may be mild or could be dangerous, even fatal.
If you feel such a reaction happening, tell your doctor or go to your nearest hospital accident and emergency department immediately.
Do not eat:
Cheese (cooked or plain), liver, yoghurt, yeast/meat extracts (e.g. Marmite, Oxo, Bovril or Brewer’s yeast), flavoured textured vegetable protein, broad bean pods, protein which has been allowed to age, degrade or ferment (e.g. hung game, pickled herrings or dry sausage such as salami or pepperoni), fermented soya bean extract, excessive amounts of chocolate.
Do not drink:
Alcohol, non-alcoholic beer, lager or wine. You may drink a reasonable amount of tea or coffee but not to excess.
If you are pregnant or breast-feeding, think you might be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
Nardil is not recommended for use during pregnancy, especially during the first and last trimesters.
Do not breast-feed if you are taking Nardil.
As with any medicine, ask your doctor or pharmacist for advice.
Nardil might cause drowsiness or blurred vision. Do not drive or operate machinery until you know if the tablets affect you in this way.
Sunset yellow (E110), a colouring agent in the film coating of Nardil, may cause an allergic reaction.
This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially ‘sodium-free’.
Always take Nardil exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
Your doctor will tell you how many tablets to take and for how long you should take them. Swallow the tablets with some water. You can take them with or without food.
Your blood pressure should be checked frequently by your doctor and Nardil should be stopped if palpitations or frequent headaches occur.
The usual starting dose is one tablet three times a day. Your doctor will decide what dose is best for you. Follow the instructions on the label and do not change the dose unless your doctor tells you to.
The dosage is the same as for adults, but elderly patients may have an increased risk of side effects and are more likely to be taking other medicines which Nardil may react with (see section 2 “Other medicines and Nardil”).
Nardil is not recommended for use in children under 16 years old.
Important – It may take four weeks before you feel the full effect of the tablets.
If these tablets are not helping you after you have taken them for about two weeks, your doctor may increase the dose to a maximum of one tablet four times a day.
In hospitals, doses of up to two tablets three times a day may be used.
Once the tablets are helping your depression, your doctor may slowly lower the dose. This may be as low as one tablet every other day.
If you accidentally take more tablets than you were told to, or you suspect that a child has swallowed the tablets, contact your doctor straight away or go to your nearest hospital accident and emergency department immediately. Take this leaflet and the pack of tablets along with you, if you can.
If you forget to take your tablets, take your next dose at the usual time and continue taking the tablets according to your doctor’s instructions. Do not take a double dose to make up for a forgotten individual dose.
If in doubt about what you should do, please contact your doctor or pharmacist.
Do not stop taking Nardil suddenly unless your doctor tells you to. This may make you feel sick or unwell.
A few people may experience a more serious effect if Nardil is stopped suddenly. This may happen one to three days after stopping Nardil and symptoms may include:
If this happens, tell your doctor immediately. Your doctor may give you a lower dose until your symptoms improve.
It is important to continue to follow all of the instructions contained within this leaflet for 14 days after you stop taking Nardil.
If you have any further questions on the use of this product, ask your doctor or pharmacist.
Like all medicines, Nardil can cause side effects, although not everybody gets them.
Side effects are usually mild or moderate in severity and tend to disappear as treatment continues.
The most serious side effects are high blood pressure, which usually happens when the wrong food is eaten (see section 2 “Nardil with food, drink and alcohol”), and neuroleptic malignant syndrome (a serious, sometime life-threatening, condition which results in fever, faster breathing and pulse rate, sweating, muscle stiffness, changes in blood pressure and reduced consciousness). If you feel this is happening to you, STOP TAKING the tablets and tell your doctor or go to your nearest hospital accident and emergency department immediately.
Common side effects are:
Uncommon side effects are:
Very rarely, other serious effects have been seen, these are:
Too little sodium (salt) in the blood has been seen with all types of antidepressants. This may cause drowsiness, confusion or fits. It is more usually seen in the elderly.
If any of these side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor.
If you are depressed and/or have anxiety disorders you can sometimes have thoughts of harming or killing yourself. These may be increased when first starting antidepressants, since these medicines all take time to work, usually about two weeks but sometimes longer.
You may be more likely to think like this:
If you have thoughts of harming or killing yourself at any time, contact your doctor or go to a hospital straight away.
You may find it helpful to tell a relative or close friend that you are depressed or have an anxiety disorder, and ask them to read this leaflet. You might ask them to tell you if they think your depression or anxiety is getting worse, or if they are worried about changes in your behaviour.
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.
Store the tablets in a refrigerator between 2ºC and 8ºC. Tablets in use may be stored at normal room temperature (below 25ºC) for short periods (e.g. when travelling or at work).
Keep in the original pack and protect from light.
Do not use Nardil after the expiry date which is stated on the carton after ‘Expiry:’ and on the bottle after ‘EXP:’. The expiry date refers to the last day of that month.
Do not throw away any 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.
Each tablet contains 15 mg of the active substance phenelzine (in the form of phenelzine sulfate).
The other ingredients are:
Core: mannitol, povidone, magnesium stearate and maize starch.
Coating: polyvinyl alcohol (E1203), talc (E553b), sunset yellow (E110), glyceryl monocaprylocaprate, glyceryl dicaprylocaprate, sodium lauryl sulfate, titanium dioxide (E171) and carmine (E120).
(See end of section 2 “Nardil contains sunset yellow (E110) and sodium” for information on sunset yellow).
Orange film-coated tablets.
The tablets are supplied in child-resistant white HDPE plastic bottles containing 100 tablets.
This leaflet was last revised in 03/2025.