What is this medication for?

Agomelatine belongs to a class of medications known as Melatonergic Agonist and Serotonergic Antagonist. It is used to treat symptoms of depression (low mood) such as:

  • Feeling sad
  • Feeling hopeless or useless
  • Feeling bad about yourself
  • Thoughts of ending your life
  • Poor sleep, energy or appetite

It may also be used to treat symptoms of Generalised Anxiety Disorder (GAD) such as:

  • Feeling constantly worried and helpless
  • Feeling restless
  • Very fast heartbeat
  • Tightness in the muscle
  • Feeling nervous

Agomelatine may be used for other conditions. Check with your healthcare professional if you are unsure why you are given this medication.

How should I take/use this medication?

  • Agomelatine may be taken with or without food.
  • Take your medication according to the instructions stated on the medication label. It is usually taken before sleeping.
  • Do not stop taking or adjust the dose of this medication without checking with your doctor.
  • Agomelatine needs to be taken regularly for a few weeks before you can feel its full benefits. You should not stop taking this medication even if you do not feel better at the beginning. Continue to take this medication even after you feel better to prevent your symptoms from returning.
  • Do check with your doctor on how long you will have to be on this medication.

What should I do if I forget to take/use this medication?

  • If you forget to take a dose, take it as soon as you remember. However, if more than half of the time to the next dose has passed, skip the missed dose and take the next dose at your usual timing.
  • For example, for a medication to be taken two times daily at 8am and 8pm, and you missed your first dose at 8am, skip the first dose if it is after 2pm, and take your second dose at the usual timing at 8pm. Do not take two doses to make up for the missed dose.

What precautions should I take?

Inform your healthcare professional if:

  • You are allergic to this medication or any of the other ingredients of this medication
  • You are pregnant, planning to become pregnant, or breastfeeding. If you are pregnant and/or breastfeeding, your doctor would have discussed the potential benefits and side-effects with you and should you have further questions or concerns, do consult your doctor.
  • You are taking any other medications (including those that can be bought without a prescription), supplements such as St John’s Wort, traditional Chinese medicine and herbal products. Some of them may affect how this medication works or cause serious drug interactions.
  • You have or have ever had:
    • Other drug allergies
    • Kidney or liver disease
    • Other mental health conditions such as bipolar disorder, abnormally high or excited mood (mania)
    • Been taking other medications for low mood in the past 2 weeks

What are some common side-effects of this medication?

The mentioned side effects generally affect up to 10% of patients.

  • Drowsiness or feeling tired
    • Avoid driving, or taking part in activities that require concentration.
  • Nausea or vomiting
    • Take the medication with or after food.
    • Take small but more frequent meals, and avoid fatty or spicy food
  • Diarrhoea
    • Drink plenty of water to replace the loss of fluid
  • Constipation
    • Drink more water (if you do not have any fluid restriction), eat more high- fibre foods, and exercise regularly
    • Speak to your doctor or pharmacist if you need medication to help with your constipation
  • Dizziness
    • Get up slowly from sitting or lying down position
  • Mild nervousness
    • May occur at the start of treatment but usually improves over time with continued medication taking
  • Headache, increased sweating, back pain or difficulty in sleeping, dreams that are different from usual

Most of the side effects listed here will improve with time. Speak with your doctor if they continue, get worse or are affecting your daily life.

What are some rare but serious side-effects that I need to seek medical advice immediately?

The symptoms of a drug allergy include one or more of the following:

  • Swollen face/eyes/lips/tongue
  • Difficulty in breathing
  • Itchy skin rashes over your whole body

Rarely this medication may cause:

  • Feelings of intense agitation or anxiety, restlessness or inability to sit still
  • Unusual thoughts, talking, feeling, and acting with excitement that you cannot control (signs and symptoms of mania)
  • Loss of appetite, severe nausea or vomiting, pain in the upper part of the stomach, yellowing of the skin or ‘whites’ of the eyes, dark-brown coloured urine and/or pale/clay-coloured stools (signs and symptoms of liver problem)
  • Pins and needles in the fingers or toes
  • Severe weakness or dizziness
  • Blurred vision
  • Excessive sweating

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

IMPORTANT:

In some cases, particularly in young people below the age of 25 years, this medication may cause the following changes to a person’s mental condition, especially in the first few weeks of treatment or during dose changes:

  • New or worsening thoughts of harming yourself or ending your life
  • Worsening agitation, restlessness, violent behaviour, or
  • Other changes in mood or behaviour

Please inform your doctor as soon as possible, or for your family or caregiver to inform your doctor if you are unable to seek treatment on your own.

Do not stop taking this medication on your own without discussing with your doctor.

It is important to note that your doctor has prescribed this medication as he/ she feels you will benefit more from taking this medication over the possible risks that it may cause, which have a low chance of occurring, and most people take this medication without any of such problems.

What food or medication should I avoid when I take this medication?

Avoid drinking alcohol while taking Agomelatine as it can worsen the symptoms of your depression and cause excessive sleepiness.

How should I store this medication?

Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.

How should I throw away this medication safely?

Pack this medication into a trash bag and seal it tightly before throwing into the rubbish chute or bin.

 

 

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