Circadin (Melatonin)

  • Contains melatonin
  • Helps you to fall asleep
  • Effective treatment for jet lag
  • Genuine medication
  • All drugs sourced in the UK

Circadin (Melatonin)



Melatonin is a natural hormone produced by the body. Synthetic melatonin is used as a medicine to help the body adjust the internal clock. It is used by people who suffer from jet lag, to adjust the sleep pattern as a result of work schedule changes, and to help blind people establish a day and night cycle.


What is Circadin (Melatonin)?

Melatonin is an important hormone that is produced naturally in the body and helps control sleeping patterns. For people with short-term sleeping problems such as insomnia, they can take Melatonin or Circadin to regulate their sleep. Circadin is the branded version of this drug and it contains the active ingredient Melatonin. This drug is often prescribed to patients over 55 years’ old who have difficulty sleeping or who have poor quality of sleep. Sometimes, this drug is recommended for children who have sleeping problems and for adults who have recurring headaches.

Circadin is characterized as white prolonged-release tablets which are available in strengths of 2 mg. Prolonged-release tablets refer to tablets that slowly release the substance inside it over a few hours. This means that patients don’t have to take several of it in a single day. Circadin is available as prescription-only medication, which means that you can only buy it once you’ve been to the doctors and you’re given a prescription. 


How does Circadin work?

Melatonin is a naturally occurring hormone that is produced by the pineal gland in the brain. This hormone is crucial in coordinating the body’s sleeping cycle. It coordinates the cycle by targeting cells in specific areas of the brain and bringing in the need to sleep. This hormone normally increases when darkness sets in and is active in the middle of the night. This is because light decreases Melatonin production and is a signal that the body needs to wake up. 

However, as people get older, the brain produces less Melatonin, which is why adults tend to sleep less. However, this can also lead to sleeping problems such as insomnia. To fix this problem, patients take Circadin to replace the Melatonin that the body needs and makes it easier for them to sleep later on. Because it is a prolonged-release tablet, Circadin mimics the natural production of this hormone, which is what helps people return to a normal sleeping schedule. 


Who can or cannot take Circadin? 

Circadin cannot be taken by some people as it is not suitable for them. Inform your doctor if you’ve had:

  • An allergic reaction to Melatonin and other medications
  • Kidney or liver problems
  • Lupus
  • Multiple sclerosis
  • Rheumatoid arthritis
  • An autoimmune condition


What are the benefits of taking Circadin?

Sleep is an important part of a person’s day. People are told to get enough sleep, which is usually 6-8 hours, in order to function properly. Some people, no matter how hard they try, simply cannot fall asleep easily. This can be caused by a number of factors, such as stress, anxiety, sleep apnea or insomnia. However, it can also be fixed with Circadin.

Circadin gives the patient their needed Melatonin by introducing more Melatonin into their system. This way, people who have had trouble sleeping or staying asleep before can now rest easily in the middle of the night. It’s important they get the necessary rest they need because without it, the body will not be able to function properly. Moreover, some people are working odd jobs, which means that their jobs disrupt their normal sleeping schedules, and they might be suffering from sleep work disorder.  With Circadin, this won’t be a problem anymore as the active Melatonin in this drug will treat this disorder. 


What are the side-effects of taking Circadin?

Here are the most common side-effects of Circadin that patients have experienced: 

  • Feeling sleepy or exhausted during the day
  • Headaches
  • Stomachaches
  • Nausea
  • Irritability 
  • Restlessness
  • Dry mouth
  • Dry or itchy skin
  • Pain in the legs or arms 
  • Night sweats
  • Strange dreams 

If these side-effects continue to persist and bother you, then you should immediately consult a doctor. 

Other more serious side-effects have also been reported by the ones taking Melatonin. Unlike the previous side-effects, once you experience them, you should immediately speak to a doctor as soon as possible. They are highlighted in the following: 

  • Feeling low or sad
  • Blurry vision
  • Watery eyes 
  • Feeling faint 
  • Confusion
  • Dizziness 
  • Vertigo 
  • Bruising
  • Blood in the urine
  • Psoriasis (a skin disease that causes red, itchy scaly patches)

Some people might experience chest pains or heart palpitations. This is a reason for alarm. You should call 999 or the emergency hotline once you experience this. 

Other people have also reported experiencing serious allergic reactions. This is another reason for alarm. If you experience the following, then you should call your doctor and get help immediately: 

  • Skin rashes
  • Itchy, red, swollen or peeling skin
  • Wheezing 
  • Tightness in the chest or throat 
  • Difficulty in breathing or talking
  • Swelling in the mouth, face, lips, tongue or throat


How do you cope with the side-effects of Circadin? 

Sometimes, these side-effects can be too much for you. It can even disrupt your daily living. However, it’s important to keep taking Circadin in order to fix your sleeping schedule. Here is a list of things you can do to cope with what you’re feeling after taking Circadin:

  1. Headaches – Stay hydrated and drinking plenty of fluids. You can also take a painkiller that has been recommended by a doctor. 
  2. Stomachaches – Make sure to take Circadin after eating a full meal. To ease the pain, you can use a heat pad or a covered hot water bottle and place it on your tummy.
  3. Dizziness – Lie down until you feel better and avoid drinking alcohol. 
  4. Dry mouth – You can cuck on sugar-free sweets or chew sugar-free gum.
  5. Dry or itchy skin – You can apply lotion or moisturizer on your skin.
  6. Feeling tired or sleepy during the day – You need to avoid doing activities that require your full attention, such as driving cars or operating machinery.
  7. Pain in the arms or legs – If this continues to bother you, then you stop taking Circadin and consult your doctor. 
  8. Strange dreams or night sweats – If these continues, then you should stop taking Circadin and consult your doctor. 


How do you take Circadin?

Depending on what you’re taking it for, Circadin is available in different dosages. If you’re taking it to prevent headaches and to treat jet lag, then you should ask your doctor for clear instructions on how to take it. 

On the other hand, if you’re taking Circadin to treat sleeping problems such as insomnia, then a doctor will prescribe 2mg slow-release tablets that you need to take at least 2 hours before going to sleep. These tablets will slowly release the Melatonin into your body just before bedtime. Don’t chew or crush the tablet. It is best to take it after eating a meal. 

The entire duration of the treatment usually takes up to a few weeks to treat insomnia. Some doctors will prescribe Circadin up to 13 weeks. It depends on how well your body is responding to the treatment.

Please note: this page is only to be used as a reference of our price for this medication. If you are approved for Travel Health medication, you will be offered treatment for you and the prescriber to jointly consider. However, the final decision will always be the prescriber's.
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