Omacor, an omega-3 supplement is available from Medicinesbymailbox Pharmacy to help meet your recommended target.

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Prescription fees

Medicinesbymailbox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.Prescriptions are issued by our doctors online and sent electronically to our pharmacy.If you have your own private paper prescription please post to our pharmacy (details).

Order value Prescription fee
Any Order Value £0.00

Medical information

The government has recommended us to eat at least two portion (recommended portion is 140g) of fish per week, in which one of them is oily fish. However, studies show that only two thirds of the population rarely have oily fish. 

The omega-3s are fatty acids which are found in dietary sources such as olive oils and oily fish. DHA and EPA are omega-3s that are associated with health benefits.

While it is best to consume fish as recommended as a source of Omega3, which provides us a range of health benefits, fish oils or omega-3 supplements are great sources to help get more omega-3 in our diet if the recommended target is not met. The content of DHA and EPA found in the supplements should be at least 200 mg to make a decent contribution to the recommended amount. People trying to reduce fats in blood or are taking fish oil to help with their heart diseases (along with medication) might need a higher amount.

Why Omega-3?

Omega-3 has been shown to contribute to normal heart health, brain function and are anti-inflammatory. It appears to have benefits for heart disease prevention and protection of the heart. Omega-3 also helps to keep blood vessels healthy. 

Products available

Medicinesbymailbox provides omega-3 supplements that help meet your recommended target:

Omacor 1g capsules: highly purified omega-3 polyunsaturated fatty acids, containing 460mg of EPA and 380mg of DHA. The usual dose is to take one capsule daily.

Regular medication

If you plan to take fish oils to help with your existing heart conditions, you should continue with your regular prescribed medicines for maximum benefits unless you have consulted your doctor.


You should consult your doctor before taking omega-3 if:

  • You have liver or kidney disease
  • You have had surgery or suffered trauma recently
  • You have uncontrolled diabetes
  • You are an elderly (over 70 years)
  • You are pregnant or breast-feeding
  • You are taking a blood thinning medicine called warfarin (your dose may have to be adjusted)

Side effects

The most common side effects are stomach problems like diarrhoea, nausea, vomiting and indigestion. Taking it with food can help to reduce these side effects. These effects are also normally mild.

Other side effects are uncommon or rare. The full list of side effects can be found on the patient information leaflet attached below.

Patient information leaflet 

The Patient Information Leaflet supplied with the supplement should be read before use.