contains the active ingredient duloxetine (as hydrochloride)

Consumer Medicine Information

What is in this leaflet

This leaflet answers some common questions about DYTREX.

It does not contain all of the available information. It does not take the place of talking to your doctor or pharmacist.

All medicines have benefits and risks. Your doctor has weighed the risks of you taking DYTREX against the benefits they expect it will have for you.

If you have any concerns about taking this medicine, talk to your doctor or pharmacist.

Keep this leaflet with your medicine. You may need to read it again.

What DYTREX is used for

DYTREX belongs to a group of medicines known as Serotonin and Noradrenaline Reuptake Inhibitors (SNRIs). SNRIs are believed to work by their action on serotonin and noradrenaline in the brain.

Serotonin and noradrenaline are the chemical messengers responsible for controlling the psychological and painful physical symptoms of depression.

DYTREX is used to treat:

  • major depressive disorder (depression)
  • diabetic Peripheral Neuropathic Pain
  • (nerve pain caused by diabetes)
  • generalised Anxiety Disorder (excessive worry)

Ask your doctor if you have any questions about why DYTREX has been prescribed for you. Your doctor may have prescribed DYTREX for another reason.

DYTREX is available only with a doctor's prescription.

DYTREX is not recommended for use in children and adolescents under the age of 18 years.

Before you take DYTREX

When you must not take it

Do not take DYTREX if you are allergic to medicines containing duloxetine hydrochloride or any of the ingredients listed at the end of this leaflet. Symptoms of an allergic reaction can include shortness of breath, wheezing or difficulty breathing, swelling of the face, lips, tongue, or other parts of the body.

Do not take DYTREX if you have liver disease. This could increase the chance of you having liver problems during treatment with DYTREX.

Do not take this medicine if you are taking another medicine for depression called a monoamine oxidase inhibitor (MAOI) or have been taking a MAOI within the last 14 days. Check with your doctor or pharmacist if you are unsure as to whether or not you are taking a MAOI.

If you do take DYTREX while you are taking a MAOI, you may experience shaking (tremor), shivering, muscle stiffness, fever, rapid pulse, rapid breathing or confusion.

Do not take DYTREX if you are taking another medicine for depression called fluvoxamine.

Do not take DYTREX if you are pregnant. DYTREX may affect your developing baby if you take it during pregnancy.

Do not breastfeed if you are taking DYTREX. It is not known if DYTREX passes into breast milk.

Do not take DYTREX if the expiry date (Exp.) printed on the pack has passed.

Do not take DYTREX if the packaging is torn or shows signs of tampering.

Before you start to take it

Tell your doctor if you are allergic to any other medicines, foods, dyes or preservatives.

Tell your doctor if you have, or have had, any medical conditions, especially the following:

  • a condition in which the pressure of fluid in the eye may be high (glaucoma)
  • high blood pressure
  • heart problems
  • bipolar disorder
  • history of fits (seizures)
  • kidney problems as you may need to take a lower dose of DYTREX
  • diabetes

If you have high blood pressure or heart problems your doctor may monitor your blood pressure.

Tell your doctor if you are pregnant or plan to become pregnant or are breast-feeding. Your doctor can discuss with you the risks and benefits involved. If DYTREX is taken during pregnancy, you should be careful, particularly at the end of pregnancy.

Transitory withdrawal symptoms have been reported rarely in the newborn after maternal use in the last 3 months of pregnancy.

Talk to your doctor about how much alcohol you drink. People who drink excessive amounts of alcohol should not take DYTREX. Drinking too much alcohol could increase the chance of you having liver problems during treatment with DYTREX.

If you have not told your doctor about any of the above, tell them before you start taking DYTREX.

Taking other medicines

Tell your doctor or pharmacist if you are taking any other medicines, including any that you buy without a prescription from a pharmacy, supermarket or health food shop.

Some medicines may be affected by DYTREX, or may affect how well it works. These include:

  • monoamine oxidase inhibitors (MAOIs), medicines used to treat some types of depression.
    You should stop taking MAOIs at least two weeks before starting DYTREX.
    You must stop taking DYTREX at least 5 days before you start taking a MAOI.
  • other medicines used to treat depression, panic disorder, anxiety or obsessive illnesses, including tryptophan
  • strong painkillers such as tramadol, pethidine
  • a type of migraine treatment called 'triptans', such as sumatriptan or zolmitriptan
  • medicines used to treat stress urinary incontinence such as tolteridone
  • medicines used to treat heart problems such as flecainide or propafenone
  • thioridazine, a medicine used to treat schizophrenia
  • herbal medicines such as St John's Wort (Hypericum perforatum)
  • warfarin, a medicine used to thin the blood (anticoagulant) or other medicines known to affect blood coagulation (NSAIDs, aspirin).

Do not start to take any other medicine unless prescribed or approved by your doctor.

These medicines may be affected by DYTREX or may affect how well it works. You may need different amounts of your medicines or you may need to take different medicines.

Your doctor can advise what to do if you are taking any of these medicines.

If you are not sure whether you are taking any of these medicines, check with your doctor or pharmacist.

Your doctor and pharmacist have more information on medicines to be careful with or avoid while taking DYTREX.

How to take DYTREX

Follow all directions given to you by your doctor and pharmacist carefully.

How much to take

The usual recommended dose of DYTREX in Major Depressive Disorder or Diabetic Peripheral Neuropathic Pain is one 60 mg enteric capsule taken once daily. The recommended dose of DYTREX in Generalised Anxiety Disorder is between 30 mg and 120 mg, taken once daily.

Your doctor may start you on a lower dose to help reduce side effects.

If you have severe kidney disease, the recommended starting dose of DYTREX is one 30 mg enteric capsule taken once daily.

Take your medicine at about the same time each day. Taking it at the same time each day will have the best effect. It will also help you remember when to take it.

How to take DYTREX

Swallow the enteric capsule whole with a full glass of water.

Do not open the enteric capsules and crush the pellets inside because the medicine may not work as well. DYTREX may be taken with or without meals.

If you forget to take DYTREX

If it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to.

Otherwise, take the missed dose as soon as you remember, and then go back to taking your tablets as you would normally.

Do not take a double dose to make up for the dose you missed.

If you are not sure what to do, ask your doctor or pharmacist.

How long to take DYTREX for

The length of treatment with DYTREX will depend on how quickly your symptoms improve.

Most medicines of this type take time to work so don't be discouraged if you do not feel better right away.

Although you may notice an improvement, continue taking your medicine for as long as your doctor recommends.

If you take too much DYTREX (overdose)

Immediately telephone your doctor, or the Poisons Information Centre (telephone 13 11 26), or go to Accident and Emergency at the nearest hospital, if you think you or anyone else may have taken too much DYTREX. Do this even if there are no signs of discomfort or poisoning. You may need urgent medical attention.

Symptoms of an overdose may include drowsiness, convulsions, and vomiting. Symptoms may also include some or all of the following: feeling confused, feeling restless, sweating, shaking, shivering, hallucinations, muscle jerks, fast heart beat.

While you are taking DYTREX

Things you must do

Before starting any new medicine, tell your doctor or pharmacist that you are taking DYTREX.

Tell all the doctors, dentists and pharmacists who are treating you that you are taking DYTREX.

Tell your doctor immediately if you become pregnant or plan to become pregnant while taking DYTREX. You should not use DYTREX if you are pregnant or thinking about becoming pregnant. Your doctor can discuss different treatment options with you.

If you plan to have surgery, including dental surgery, that needs a general anaesthetic, tell your doctor or dentist that you are taking DYTREX.

Be sure to keep all of your doctor's appointments so that your progress can be checked. Your doctor will check your progress and may want to take some tests (e.g. blood tests, blood pressure) from time to time. These tests may help to prevent side effects.

Tell your doctor immediately if you have any suicidal thoughts or other mental/ mood changes. Occasionally, the symptoms of depression or other psychiatric conditions may include thoughts of harming yourself or committing suicide. These symptoms may continue or get worse during the first one or two months of treatment, until the full antidepressant effect of the medicine becomes apparent This is more likely to occur in young adults under 25 years of age.

Contact your doctor or a mental health professional right away or go to the nearest hospital for treatment if you or someone you know is showing any of the following warning signs of suicide:

  • worsening of your depression
  • thoughts or talk of death or suicide
  • thoughts or talk of self-harm or harm to others
  • any recent attempts of self-harm
  • increase in aggressive behaviour, irritability or any other unusual changes in behaviour or mood.

All mentions of suicide or violence must be taken seriously.

If you notice any of the following contact your doctor right away.

Your doctor may do some blood tests to check your liver or tell you to stop taking your medicine. Signs of liver problems include:

  • itchy skin
  • dark urine
  • yellowing of the skin or eyes
  • tenderness over the liver
  • symptoms of the 'flu'

These may be signs of serious liver damage.

Things you must not do

Do not use DYTREX to treat any other conditions unless your doctor tells you to.

Do not give DYTREX to anyone else, even if they have the same condition as you.

Do not stop taking DYTREX unless you have discussed it with your doctor. If you stop taking it suddenly, your condition may worsen or you may have unwanted side effects. If possible, your doctor will gradually reduce the amount you take each day before stopping the medicine completely.

Things to be careful of

Be careful driving or operating machinery until you know how DYTREX affects you. DYTREX may cause drowsiness, dizziness or lightheadedness in some people. If any of these occur, do not drive, operate machinery or do anything else that could be dangerous.

Do not let yourself run out of DYTREX over the weekend or on holidays.

Be careful when drinking alcohol while you are taking this medicine. Drinking large amounts of alcohol during treatment with DYTREX can cause severe liver injury.

You should avoid 'binge drinking' or drinking excessively during treatment with DYTREX. Drinking alcohol with this medicine may also cause dizziness or drowsiness in some people. If you have any of these symptoms, do not drive, operate machinery or do anything else that could be dangerous.

Side effects

Tell your doctor or pharmacist as soon as possible if you do not feel well while you are taking DYTREX.

Like all other medicines, DYTREX may have unwanted side effects in some people. Sometimes they are serious, most of the time they are not. You may need medical treatment if you get some of the side effects.

Do not be alarmed by this list of possible side effects. You may not experience any of them.

Ask your doctor or pharmacist to answer any questions you may have.

Tell your doctor if you notice any of the following and they worry you:

  • dry mouth, mouth ulcers, thirst, bad taste
  • burping or belching, indigestion, stomach pain, nausea, vomiting,
  • constipation, diarrhoea, wind (flatulence)
  • bad breath
  • loss of appetite, weight loss
  • headache
  • trouble sleeping
  • dream abnormalities
  • drowsiness
  • feeling tired or having no energy
  • sexual problems
  • dizziness
  • tremor
  • blurred vision
  • feeling anxious, agitated or restless
  • confusion and attention problems
  • tingling and numbness of hands, face, mouth and feet
  • yawning or throat tightness
  • difficulty urinating (passing water), urinating frequently or needing to urinate at night
  • irregular heart beat
  • hot and cold sweats
  • sore ears, sore throat
  • ringing in ears
  • muscle pain, stiffness or twitching
  • walking problems
  • flushing
  • skin rash
  • restless legs

These are the more common side effects.

Tell your doctor immediately if you notice any of the following:

  • signs of a possible serious liver problem,
  • such as nausea, vomiting, loss of appetite, feeling generally unwell, fever, itching, yellowing of the skin and/or eyes, dark urine
  • high pressure in the eye (glaucoma)
  • feeling tired, weak or confused and having achy, stiff or uncoordinated muscles. This may be because you have low sodium levels in the blood
  • (hyponatraemia or syndrome of inappropriate antidiuretic hormone)
  • abdominal pain, traces of blood in your stools, or if your stools are dark in colour. This may because you have increased bleeding, possibly in the gastric tract (gastrointestinal bleeding). You may also feel weakness, dizziness and experience nausea and/or vomiting
  • seeing or hearing things (hallucinations)
  • dizziness or fainting when you stand up, especially from a lying or sitting position
  • uncontrollable movements
  • if you have some or all of the following symptoms you may
  • have something called serotonin
  • syndrome: feeling confused,
  • feeling restless, sweating,
  • shaking, shivering, hallucinations,
  • if you have some or all of the following symptoms you may have something called serotonin syndrome: feeling confused, feeling restless, sweating, shaking, shivering, hallucinations, sudden jerks in your muscles or a fast heart beat
  • stiff neck or jaw muscles (lockjaw)
  • fits or seizures
  • mood of excitement, over-activity and uninhibited behaviour.
  • aggression or anger especially after starting or stopping taking this medicine

This list includes serious side effects that may require medical attention.

Other changes you may not be aware of:

  • increased blood pressure
  • heart rhythm changes
  • underactive thyroid gland
  • liver function changes

If any of the following happen, tell your doctor immediately or go to Accident and Emergency at your nearest hospital:

  • itching, skin rash or hives
  • shortness of breath, wheezing or trouble breathing
  • swelling of the face, lips, tongue or other parts of the body.

These are very rare but serious side effects. You may need urgent medical attention or hospitalisation.

Other side effects not listed above may also occur in some patients.

Tell your doctor if you notice anything that is making you feel unwell.

After using DYTREX


Keep DYTREX where children cannot reach it. A locked cupboard at least one-and-a-half metres above the ground is a good place to store medicines.

Keep your enteric capsules in a cool dry place where the temperature stays below 25°C.

Do not store DYTREX or any other medicine in the bathroom or near a sink.

Do not leave DYTREX in the car or on window sills. Heat and dampness can destroy some medicines.


If your doctor tells you to stop taking DYTREX, or your enteric capsules have passed their expiry date, ask your pharmacist what to do with any that are left over.

Product description

What it looks like

DYTREX comes in 2 strengths of enteric capsule:

  • DYTREX 30 mg – Blue/white, opaque capsules, printed with ‘157’ and ‘A’ in green ink
  • DYTREX 60 mg – Blue/green, opaque capsules, printed with ‘157’ and ‘A’ in white ink.

Each blister pack contains 28 enteric capsules.


The active ingredient in DYTREX is duloxetine (as hydrochloride).

  • each DYTREX 30 mg contains 30 mg of duloxetine
  • each DYTREX 60 mg contains 60 mg of duloxetine.

The enteric capsules also contain:

  • Sugar Spheres
  • hypromellose
  • purified talc
  • sucrose
  • hypromellose phthalate
  • triethyl citrate
  • gelatin
  • titanium dioxide
  • indigo carmine
  • iron oxide yellow (60 mg only)
  • Tekprint SB-4020 Green Ink (30 mg only)
  • Tekprint SW-0012 White Ink (60 mg only)


Arrow Pharma Pty Ltd
15-17 Chapel Street
Cremorne VIC 3121

Australian registration numbers:

DYTREX 30 mg - AUST R 199262

DYTREX 60 mg - AUST R 199263

Date of preparation:
February 2018

Published by MIMS April 2018

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