Alli FAQ

What is Alli?

Alli is the brand name of the over the counter weight loss drug for dieters, orlistat, that has been approved for use for use as an aid to weight loss in people with a BMI that is higher than 28.

Who is Xenical suitable for?

You can buy Alli if you have a BMI over 28 or over. Alli is not a magic pill. It can increase the amount of weight you lose by about 50% compared to dieting alone, but you should still take it conjunction with a reduced calorie, lower fat diet and a reasonable amount of exercise.

What results can I expect?

For every 2lbs (0.9kgs) you can manage to lose by healthy eating and exercise, Alli can help you to lose on average an extra 1lb on top.

What are the most common side effects?

Alli is a lipase inhibitor, i.e. it prevents the absorption of about 25% of the dietary fat. Therefore, common side effects include flatulence with an oily discharge, oily spotting, oily stools and fecal urgency. This side effects are milder than when taking Xenical because the Alli tablet is only half the strength of the Xenical tablet.

Will I need to take a vitamin supplement?

Alli may reduce the absorption of some fat soluble vitamins. If you are taking Alli, you should also take a multivitamin tablet that contains vitamins A, D, E and K at bedtime so that sufficient quantities of these vitamins are absorbed by the body.

Can I get it on the NHS?

No, Alli can only be bought over the counter. However, you may be able to receive the higher dosed Xenical on NHS prescription - you should see your doctor if you think Xenical might be appropriate for you.

Can it be bought online?

Yes, it can be bought online from many reputable and well known online pharmacies including Boots.