What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original can be viewed in PDF format using the link above.

The text only version may be available from RNIB in large print, Braille or audio CD. For further information call RNIB Medicine Leaflet Line on 0800 198 5000. The product code(s) for this leaflet are: PL17780/0637, PL17780/0636.

Trimipramine 10mg & 25mg Tablets


Trimipramine 10mg and 25mg Tablets

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Read all of this leaflet carefully before you start taking this medicine

  • 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. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
  • If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

In this leaflet:

1. What Trimipramine Tablets are and what they are used for.
2. Before you take Trimipramine Tablets
3. How to take Trimpramine Tablets
4. Possible side effects
5. How to store Trimipramine Tablets
6. Further information

1. What Trimipramine Tablets are and what they are used for

The name of your medicine is Trimpramine 10mg or 25mg Tablets (called trimpramine in this leaflet). Your tablets contain a medicine called trimipramine. This belongs to a group of medicines called antidepressants.

Trimipramine can be used to treat depression. They are especially useful for treating depression in people who also have problems sleeping, stress (anxiety) or feel irritable and restless (agitation).

2. Before you take Trimipramine Tablets

Do not take this medicine and tell your doctor if:

  • You are allergic (hypersensitive) to trimipramine or any of the other ingredients of Trimpramine Tablets (listed in Section 5 Further Information).
    Signs of an allergic reaction include: a rash, swelling or breathing problems, swelling of your lips, face, throat or tongue
  • You have had a heart attack
  • You have had any other heart problems including slow or uneven heart beat
  • You have severe liver problems
  • You have mania (signs include very high mood, energy and unusual behaviour)
  • You are breast-feeding

Do not take this medicine if this applies to you. If you are not sure, talk to your doctor or pharmacist before taking trimipramine.

Take special care with trimipramine

Thoughts of suicide and worsening of your depression or anxiety disorder

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 previously had thoughts about killing or harming yourself.
  • If you are a young adult. Information from clinical trials has shown an increased risk of suicidal behaviour in adults aged less than 25 years with psychiatric conditions who were treated with an antidepressant.

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 have diabetes or are at risk of getting diabetes, your doctor may do blood tests to monitor your blood sugar levels.

Check with your doctor or pharmacist before taking this medicine if:

  • You are elderly
  • You have an enlarged prostate gland
  • You have glaucoma (painful eyes with blurred vision)
  • You have or have ever had fits or seizures
  • You have thyroid problems

If you are not sure if any of the above apply to you, talk to your doctor or pharmacist before taking trimipramine.

Taking other medicines

Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines. This includes medicines you buy without a prescription, including herbal medicines. This is because trimipramine can affect the way some other medicines work. Also some medicines can affect the way trimipramine works.

Tell your doctor if you are taking any of the following medicines:

  • MAOI (MonoAmine Oxidase Inhibitors) medicine such as tranylcypromine, phenelzine and isocarboxazid (for Parkinson’s disease), or have taken them in the last 2 weeks
  • Sedatives (such as tranquilizers or sleeping pills)
  • Medicines used to treat high blood pressure
  • Adrenaline, noradrenaline, ephedrine or isoprenaline – used in an emergency
  • Phenylelphrine or phenylpropanolamine – found in cold and flu preparations
  • Medicines used for chest pain (angina) or high blood pressure such as diltiazem, verapamil, clonidine, digitalis
  • Medicines used for depression (SSRIs such as citalopram, paroxetine, fluoxetine) tryciclics and triptan derivatives, lithium, St John’s Wort
  • Pain killers such as tramadol
  • Macrolide antibiotics, antifungals or floroquinolones.


If you are going to have an anaesthetic (for an operation), tell your doctor or dentist that you are taking trimipramine.

Taking trimipramine and drink

You should avoid drinking alcohol while taking trimipramine.

Pregnancy and breast-feeding

Talk to your doctor before taking this medicine if you are pregnant, might become pregnant, or think you may be pregnant.

Do not breast-feed if you are taking trimipramine.

Driving and using machines

Trimipramine may make you feel sleepy or less alert. If this happens, do not drive or use any tools or machines.

Important information about some of the ingredients of trimipramine

Trimipramine Tablets contain lactose. If you have been told that you cannot digest or tolerate some sugars, talk to your doctor before taking trimipramine.

3. How to take Trimipramine Tablets

Always take trimipramine exactly as your doctor has told you. You should check with your doctor or pharmacist if you are not sure.

Taking this medicine

  • Take this medicine by mouth
  • Swallow the tablets whole with a drink of water
  • If you have been told to take trimipramine only once each day then you should take it before going to bed
  • It may take 7 to 10 days before you feel the full benefit of the medicine
  • If you feel the effect of your medicine is too weak or too strong, do not change the dose yourself but ask your doctor

How much to take



  • Adults usually start by taking 50mg to 75mg each day.
  • Your doctor may then increase the dose to 150mg or 300mg each day depending on your condition
  • Once you start to feel better, the usual daily dose then stays the same at 75mg to 150mg each day


  • Elderly usually start by taking 10mg to 25mg three times each day
  • Your doctor will then increase this slowly
  • Once you start to feel better, the usual daily dose stays the same at 35mg to 75mg each day


Children should not take trimipramine

If you take more trimipramine than you should

If you take more trimipramine than you should, tell a doctor or go to a hospital casualty department straight away. Take the medicine pack with you. This is so the doctor knows what you have taken.

The following effects may happen: fits (seizures), collapse and falling into a coma.

If you forget to take trimipramine

If you forget a dose, take it as soon as you remember it. However, if it is nearly time for the next dose, skip the missed dose. Do not take a double dose to make up for a forgotten dose.

If you stop taking trimipramine

Keep taking trimipramine until your doctor tells you to stop. Do not stop taking trimipramine just because you feel better. This is because your illness may come back. When your doctor tells you to stop taking these tablets he/she will help you stop taking them gradually.

Stopping your medicine too quickly could cause sleep problems, feeling irritable and sweating more than usual.

4. Possible side effects

Like all medicines, trimipramine can cause side effects, although not everybody gets them.

Stop taking trimipramine and see a doctor or go to a hospital straight away if:

  • You get swelling of the hands, feet, ankles, face, lips or throat which may cause difficulty swallowing or breathing, itching of the skin and nettle rash. This may mean you are having an allergic reaction to trimipramine.

Talk to your doctor straight away if you notice the following side-effects:

  • Painful erection of the penis, unrelated to sexual activity, that will not go away (priapism)
  • Yellowing of the eyes or skin. This could be a liver problem (such as jaundice)
  • Overactive behaviour or thoughts (mania or hypomania)
  • Numbness or weakness in the arms and legs (peripheral neuropathy)
  • Feeling that someone is ‘out to get you’
  • Getting infections more easily than usual. This could be because of a blood disorder (agranulocytosis)
  • Convulsions/fits
  • Unusual skin sensations such as numbness, tingling, pricking, burning or creeping on the skin (paraesthesia)
  • Increased thirst and passing water (urine) more often than normal. You may also feel tired and hungry. This could be due to high blood sugar levels or a condition called diabetes
  • An uneven or fast heartbeat.

Below is a list of other side effects that have been reported:

  • Feeling drowsy or sleepy
  • Constipation
  • Dry mouth
  • Tremor (shaking)
  • Blurred vision
  • Rapid heartbeat
  • Sweating more than usual
  • Feeling dizzy or light-headed on standing or sitting up quickly (postural hypotension)
  • Sexual problems
  • Delay when starting to pass water (urine)
  • Skin rash

An increased risk of bone fractures has been observed in patients taking this kind of medicine.

Reporting of side effects

If you get any side effects, talk to your doctor or pharmacist. 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.

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Trimipramine Tablets

Keep this medicine in a safe place where children cannot see or reach it.

Do not use trimipramine after the expiry date which is stated on the blister and carton after EXP. The expiry date refers to the last day of that month.

Keep the blister pack in the carton to protect from light.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.

6. Further information

What Trimipramine Tablets contain

  • Each 10mg Tablet contains 14mg of trimipramine maleate, equivalent to 10mg of trimipramine
  • Each 25mg Tablet contains 34.9mg of trimipramine maleate, equivalent to 25mg of trimipramine
  • Other ingredients include calcium, hydrogen phosphate, starch potato, magnesium stearate, talc, Opadry OY-L-28900 (which contains lactose monohydrate, hypromellose, titanium dioxide and macrogol)

What Trimipramine Tablets look like and contents of the pack

Trimipramine 25mg Tablets are white to pale yellow, circular and biconvex. On one side they have embossed ‘TM’ above ‘25’. Tablets are available in packs of 28, 50, 56, 84 and 500. Not all pack sizes may be marketed.

Trimipramine 10mg Tablets are white to pale yellow, circular and biconvex. On one side they have embossed ‘TM’ above ‘10’ Tablets are available in packs of 28, 50, 56, 84 and 500. Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

One Onslow Street


S.A.U. Avda. Leganés
62, Alcorcón 28923 (Madrid)

This leaflet does not contain all the information about your medicine. If you have any questions or are not sure about anything, ask your doctor or pharmacist.

This leaflet was last revised in 12/2013

© Zentiva, 2013