Facts on common weight loss treatment

By KATHERINE HOBY

Some people keen to lose weight wonder whether a prescribed drug such as Xenical, one of New Zealand's best-known treatments, would be right for them.

Roche Products business manager Stuart Knight says Xenical is all about helping very overweight people lose weight safely, in conjunction with healthy eating and regular exercise.

Here he sets the record straight and answers some of the most commonly asked questions about Xenical.

What is Xenical?

Xenical is a weight-loss treatment that is prescribed by doctors for very overweight people. It is a prescription-only medicine. Indepth information from large-scale international clinical studies was independently reviewed by the Ministry of Health before Xenical was approved for use in New Zealand.

How does it work?

It works by blocking a third of the fat you eat from being absorbed into your body. As Xenical works directly on the fat in your food, it is important to follow a healthy eating plan.

Regular physical activity is also important. All New Zealanders taking Xenical have access to dietitians to help them choose healthier eating options and offer motivation via a support programme.

When was it introduced in New Zealand, and is it used elsewhere?

Xenical first became available in New Zealand in June 1998. It is widely available as a prescription medicine throughout the world, and has been used by 15 million people worldwide.

What are the possible side-effects?

If people continue to eat high-fat foods while on Xenical, side-effects may occur. Side-effects are usually mild - abdominal pain, or wind.

How much does it cost?

The average monthly price of Xenical is between $165 and $175. This cost can be offset for people registered on the free Xenical support programme.

These people are eligible for one free month of Xenical after three months' treatment.

Is it necessary to stay on Xenical long-term, or even for life?

This depends on the individual. We recommend people commit to at least 3-6 months. However, Xenical has proven safe and effective in the long term.

How many New Zealanders are taking it?

Approximately 3000 New Zealanders are taking Xenical at present.

Who can or should take Xenical?

Adults with a body mass figure of 30 or more (divide your weight in kilograms by your height in metres squared) could consider taking Xenical, that is adults with about 20 per cent more body weight than is considered healthy.

Herald feature: Health