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Online Consultation for a Prescription

The Online Clinic can prescribe certain medications to aid weight loss depending on the patient's individual medical circumstances. These medications are all UK licensed products that have been demonstrated in clinical trials to be effective. Medications to assist with weight reduction cannot be taken by everyone so it is important that we have an accurate medical history before we can make a treatment recommendation.

We offer a free, no obligation online consultation to check your suitability. Next day delivery is included free of charge.

Free Online Assessment Quick and Without Obligation

Individual Assessment

We often get asked which diet pills are best, based on effectiveness and the speed at which they produce results. It is really impossible to provide an individual projection of how much weight a patient will lose, as everyone responds differently. Where one weight loss medication may work well for one individual, the same treatment may have a limited impact on another patient.

Studies have shown that using certain medications can double the weight loss that you can expect to achieve when compared with diet and exercise alone.

A summary of the effectiveness of each of these medications, taken from the clinical trial data, is set out below. A comparative study of each of the different medications has never been undertaken (to our knowledge). The patients who were administered a placebo in the trials were given the same eating plan and exercise regime to make the results comparable. By looking at the two sets of results, you can see how effective each medication is when compared with calorie control and exercise alone.


Over a two year period, two groups of patients were given the same low fat diet. One group was administered Orlistat (the active ingredient in Xenical) and one was administered a placebo. By the end of the first 12 weeks of the study, 37% of the Orlistat patients had lost 5% of their body weight compared with only 19% of patients on the placebo. At the end of one year, 20% of Orlistat patients had lost 10% of their body weight compared with only 8% of patients being administered a placebo.

Find out more about Xenical.


Mysimba was launched in the UK in 2017 and is an appetite suppressant. The percentage of patients using this medication in the clinical trials who lost at least 5% of their body weight was more than double that of those on the placebo who lost the same about of weight. Patients who responded well to the medication in the first few months were much more likely to continue the weight loss trajectory. The overall efficacy rate was 50% - this means that it was ineffective for half the people who took this drug.

Find out more about Mysimba.


Saxenda is a daily injection that works as an appetite suppressant. This medication has a high success rate and is one of our most popular weight loss treatments.

In clinical trials, 62% of patients lost at least 5% body weight, compared with 34% of those in the placebo control group. 34% lost at least 10% of body weight compared with 15% on the placebo control group.

Find out more about Saxenda.

Potential New Medications

There are at least two new diet pills that are expected to be examined by European regulators in the next few years - Qsiva and Lorqess.

Both Reductil and Acomplia have had to be withdrawn in recent years so regulators are extremely cautious in the area of weight loss medications, as they are likely to be taken by very large numbers of people; studies that might normally be done post-licensing are being requested prior to a marketing authorisation being granted.

Further details of the new diet pills being considered by regulators are given on the slimming pills page of this website.

Beware Fake Diet Pills Online

You need to be careful when buying diet pills or other medications online. There are many websites selling unlicensed treatments that must be avoided. You can view the UK Government information campaign on how you can recognise a genuine, licensed seller of medication online.

Diet Pills News

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    People who are looking to lose weight quite often (and totally understandably) want to explore the easiest option for shedding excess weight and it is not just the obese and overweight who are attracted to the prospect of popping a pill and watching the pounds melt away; gym bunnies are also…

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  • Contrave Heart Study Recruits Sought

    Orexigen Therapeutics has set out to recruit the 10,000 participants that it requires for the cardiovascular risk study of Contrave, its lead weight loss drug candidate. We have written about Contrave before and you may remember that the license application for the combination of bupropion and…

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