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Trimipramine 50 mg hard capsules – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: Prescription only (POM) Details

Medicine strength:
50 mg
Contains active substance:

Patient leaflet - Trimipramine 50 mg hard capsules

What Trimipramine is and what it is used for

The name of your medicine is Trimipramine 50mg Capsules, Hard (called trimipramine in this leafl

et). Your Capsules 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.

What you need to know before you take Trimipramine

Do not take this medicine and tell your doctor if:

•

You are allergic (hypersensitive) to trimipramine or any of the other ingredients of Trimipramine Capsules (listed in Section 6 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 leafl

et. 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

The use of Buprenorphine together with trimipramine can lead to serotonin syndrome, a potentially life-threatening condition (see “Other medicines and Trimipramine”).

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

Other medicines and Trimipramine

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 a citalopram, paroxetine,

fluoxetine) tricyclics and triptan derivatives, lithium, St

John’s Wort

•

Pain Killers such as tramadol

•

Buprenorphine/opioids. These medicines may interact with trimipramine and you may experience symptoms such as involuntary, rhythmic contractions of muscles, including the muscles that control movement of the eye, agitation, hallucinations, coma, excessive sweating, tremor, exaggeration of reflexes, increased muscle tension, body temperature above 38°C. Contact your doctor when experiencing such symptoms.

•

Macrolide antibiotics, antifungals or flu oroquinolones.

Anaesthetics

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

Trimipramine and alcohol

You should avoid drinking alcohol while taking trimipramine.

Pregnancy and breast-feeding

If you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

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.

3.

How to take Trimipramine

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 Capsules 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:

Depression

•

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

Package leaflet: Information for the user

Trimipramine 50mg Capsules, Hard

trimipramine

Version: 07

Date & Time: 19.05.2023 & 2:40 PM

Submission: N12330-u15c

Trimipramine 50 mg

Capsules, Hard

P15xxxxx

T r i m i p r a m i n e 5 0 m g

C a p s u l e s , H a r d

P 1 5 x x x x x

Elderly:

•

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:

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 Capsules 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 your child gets 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 Trimipramine

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton and bottle after EXP. The first two numbers indicate the month; the last four numbers indicate the year. The expiry date refers to the last date of that month.

This medicine does not require any special storage conditions.

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.

6.

Contents of the pack and other information

What Trimipramine contains

The active substance is Trimipramine

Each Capsule, Hard contains 50 mg Trimipramine

The other ingredients are:

Cellulose, Microcrystalline (E460), Maize starch, Silica colloidal anhydrous, Magnesium Stearate, Titanium Dioxide (E171), Brilliant blue FCF (E133) and Gelatin.

What Trimipramine looks like and contents of the pack

Trimipramine Capsule, Hard is blue opaque cap/white opaque body, size “1” hard gelatin capsule shells, imprinted with “TRM” on cap and “50” on body with black ink, filled with white to off-white powder.

Pack sizes:

HDPE bottles or Securitainers of 50 capsules, hard.

Cartons containing opaque PVdC coated PVC/aluminium blisters of 28 capsules, hard.

Marketing Authorisation Holder

Milpharm Limited

Ares Block

Odyssey Business Park

West End Road

Ruislip HA4 6QD

United Kingdom

Manufacturer

APL Swift Services (Malta) Limited

HF26, Hal Far Industrial Estate, Hal Far,

Birzebbugia, BBG 3000, Malta

Or

Milpharm Limited

Ares Block, Odyssey Business Park, West End Road,

Ruislip, HA4 6QD, United Kingdom

This leaflet was last revised in 05/2023.

P15XXXXX

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 16363/0682

Last revision stated in the text: May 2023 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Trimipramine 50 mg hard capsules

Prescription needed? Yes, prescription-only medicine (POM)
Active substance Trimipramine
Strength 50 mg
Pharmaceutical form Oral capsule
Blue opaque cap/white opaque body, size “1” hard gelatin capsule shells, imprinted with “TRM” on cap and “50” on body with black ink, filled with white to off-white powder.
How is it taken Oral
Excipients Cellulose, Microcrystalline (E460), Maize starch, Silica, colloidal anhydrous, Magnesium Stearate, Titanium Dioxide (E171), Brilliant blue FCF (E133), Gelatin
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 3 years
Storage This medicinal product does not require any special storage conditions.
Drug group (ATC) Psychoanaleptics; Non-selective monoamine reuptake inhibitors
  1. N Nervous system drugs
    1. N06 Psychoanaleptics
      1. N06A Antidepressants
        1. N06AA Non-selective monoamine reuptake inhibitors
          1. N06AA06 trimipramine
Marketing authorisation PL 16363/0682 (first authorised 8 June 2023), PL 20117/0407 (first authorised 16 July 2026)
Marketing authorisation holder Milpharm Limited, Morningside Healthcare Limited
Codes BNF 04030100

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.