The three-order test adds your first order and the confirmed repeat orders for the same amount of medicine. A low first price can be outweighed by later charges. Include any plan you must commit to and leave unearned referral rewards out of your budget. Check whether you pay every four weeks or every calendar month.
Part of the referral savings handbook · The examples show the sums. They are not live pharmacy prices.
Pick a fair period to compare pharmacy costs
Compare three orders first. Three orders show what happens after the welcome offer ends. Three orders are not always three calendar months. Write down how long each order lasts and the payment dates, especially if one option bills every four weeks.
If a plan ties you in for more payments, compare all of them. Counting only the discounted first order hides what you are signing up to. Equally, do not assume a flexible plan commits you to orders you have not agreed to buy.
Worked example: a smaller discount wins over three orders
| Offer | First | Second | Third | Total |
|---|---|---|---|---|
| Large first-order discount | £100 | £220 | £220 | £540 |
| Steady price | £165 | £165 | £165 | £495 |
The £100 first order looks £65 cheaper. Over three orders, the steady price saves £45. The example assumes the same amount of medicine, the same support and no exit fee.
What if you leave after the first order?
Work this out as a separate sum. Your plan has to let you leave, and the new pharmacy has to assess you properly. Then a discounted first order followed by a lower price elsewhere may cost less. Add the real cost of moving.
Using the figures above, £100 followed by two £165 orders totals £430. Add a £120 exit fee and the total becomes £550. The switch goes from £65 cheaper than the steady option to £55 dearer. These charges are examples, not any provider’s policy.
Do not assume every provider lets you leave after the first order. Read our guide to switching pharmacy after a discount and get your own cancellation quote. Where there is no exit fee, you can move to a pharmacy you have not used and pay its first-order price. See how to pay the new-customer price each month.
Four-weekly billing vs calendar-month billing
There are thirteen 28-day periods in 364 days. A fixed £150 charge every 28 days adds up to £1,950 over thirteen cycles. Twelve calendar-month charges of £150 come to £1,800. This sum does not tell you how many charges your own plan will take. Your start date, delivery length and contract set the schedule.
Numan’s product terms define its billing cycles. Check your own confirmation. The word “monthly” alone does not tell you enough.
Mark unknown future costs as unknown
Use confirmed prices for the treatment your prescriber has agreed. Do not assume a dose increase, continued eligibility, future stock or a new referral every month. If you do not know a future amount, write “unknown” and ask. Never make up a comforting total.
Redo the sum whenever the offer, your prescribed medicine or your contract changes. Your budget helps you plan. Never change medicine or stretch your doses to fit the budget.
Frequently asked questions
What is the three-order test for pharmacy prices?
The three-order test adds the first order and the confirmed repeat orders for the same medicine. In an invented example, a £100 first order then two £220 orders cost £540, against £495 for three steady £165 orders.
Is four-weekly billing more expensive than monthly billing?
Four-weekly billing fits thirteen charges into 364 days. A £150 charge every 28 days comes to £1,950 over thirteen cycles, against £1,800 for twelve calendar-month charges. Your start date, delivery length and contract set your real schedule.
Is it cheaper to leave a pharmacy after the first discounted order?
Sometimes. In an invented example, £100 then two £165 orders elsewhere totals £430, but a £120 exit fee raises the total to £550. Check whether your plan lets you leave and get your own cancellation quote.
Should referral rewards go in my weight-loss treatment budget?
Leave unearned referral rewards out of your main weight-loss budget. Do not assume a new referral every month, a dose increase, continued eligibility or future stock. Label unknown future amounts as unknown.
Why does a big first-order discount not always save money?
A big first-order discount is often followed by higher repeat prices. In the invented example, a £100 first order looked £65 cheaper, but three orders cost £45 more than a steady £165 price. Add up all three orders before you choose.
Sources
Links checked on 6 October 2026. Provider prices and policies change, so confirm the details with the provider before you pay. The organisations linked here have not reviewed or endorsed this guide.
- Numan: weight-loss product-specific terms, sections 3.4 to 3.9
- Juniper: Commit & Save terms
- Voy: weight-loss terms of sale, subscription and cancellation clauses
Pharmacy Hopper does not give medical advice. Read our editorial standards.