Melatonin (Circadin)

30 tablets


Order now and get it by Friday 29th March



Side Effects

Q & A

Jet lag usually happens when our time zone changes. It is also known as time zone change syndrome or desynchronosis. The main cause of this is sleep disturbance. Jet lag is considered as a physiological condition where our body clock is disrupted. This condition regulates out daily activities such as sleep, wake up time, and eating. Symptoms tend to increase when we travel eastward compared to the westward. Children have milder symptoms.

Melatonin is a kind of sleeping tablet which makes us feel sleepy. It is also known as circadin. Melatonin is a hormone which is present in our body (naturally). It controls the sleep patterns of our body. Melatonin increases the supply of the hormone and helps to stimulate and enhance the quality of sleep. This medicine is very effective for people suffering from jet lag. However, it is not recommended for children below the age of 18 years.

Download Melatonin patient information leaflet

  • Always read the patient leaflet for more detailed information
  • 1 tablet 2 hours before bedtime, or as prescribed by the doctor
  • Take the medicine after meal
  • The course can be continued for about 13 weeks, or as prescribed by the doctor

  • Headache
  • Feeling tired
  • Drowsiness
  • Nausea
  • Stomach ache
  • Indigestion
  • Restless
  • Dry mouth
  • Itching

Uncommon/Rare Side Effects – if you observe any of the following side effects, see a doctor.

  • Chest pain
  • Loss of consciousness
  • Depression
  • Blurred vision
  • Dizziness
  • Presence of red blood cells in the urine
  • Anxiety
  • High blood pressure
  • Skin rashes
  • Weakness
  • Shingles
  • Vomiting
  • Swelling of the face, mouth

These details are provided only as a guide. Please read patient information leaflet for more details.

If you are looking for some expert help, book an ONLINE consultation with our GMC Registered Clinicians at

Patient discretion and confidentiality top the priority list at!


What factors influence jet lag?

The severity of jet lag will vary depending on certain factors. These include age, social factors (such as stress and worry) and the time of the flight; day flights are usually much easier to deal with. Also, the direction in which you are headed affects the intensity of your condition. Eastbound flights tend to be more severe, while north-south and south-north flights will give no feeling of jet lag.

How long do symptoms last?

Subsequent to the flight arriving in a new time zone, symptoms will typically fade after around 2-3 days. If symptoms persist, you should consult a doctor immediately.

Is melatonin effective for jet lag?

There is strong scientific backing behind the positive effects that melatonin can have towards decreasing symptoms of jet lag. It can decrease the time it takes to fall asleep significantly, boot your vigilance, and reduce fatigue during the daytime.

Are sleeping pills a viable alternative?

We only recommend sleeping pills to people who have found melatonin to be ineffective and need another form of treatment.

To complete your purchase, take our questionnaire. Once completed, a registered doctor will review your answers and issue a prescription, if suitable. This prescription will be sent to our practising pharmacy who will dispense your treatment. Orders are shipped by secure next-day courier.

Patient discretion and confidentiality top the priority list at!