The Scottish Drug Tariff (SDT) is the official schedule that sets reimbursement rates for medicines dispensed by community pharmacies in Scotland. Part1 of the Tariff deals with Prescription Drugs and contains a series of annexes that define pricing rules for different categories of medicines. AnnexA the Zero Discount List is a key component of this framework. It specifies a small group of medicines for which a zero discount rule applies, meaning that no discount can be taken from the standard unit price when calculating the reimbursement amount.
Most medicines listed on the SDT are subject to a statutory discount (currently 7%). The discount reduces the amount payable by the NHS to the pharmacy and is intended to reflect the difference between the list price and the procurement cost that pharmacists achieve through bulk purchasing. However, for certain medicines the discount would be inappropriate for one or more of the following reasons:
When a pharmacist dispenses a medicine that appears on AnnexA, the reimbursement is calculated using the full list price (the tariff unit price) without applying the 7% discount. The formula can be expressed as:
Reimbursement = QuantityUnit Price (no discount applied)
If the same medicine is also listed under a different category that allows a discount, the pharmacy must follow the specific guidance in the Tariff to determine which rule overrides. Usually, the AnnexA rule takes precedence because it is a statutory exception.
The list is deliberately small and is updated only when a compelling reason exists. Below is a representative selection of the medicines currently covered by the zerodiscount provision.
| BNF Code | Medicine (Brand) | Therapeutic Area | Rationale for Zero Discount |
|---|---|---|---|
| 02.01.01 | Insulin Degludec (Tresiba) | Diabetes longacting insulin | Manufacturernegotiated price; highrisk insulin |
| 12.03.01 | Ivacaftor (Kalydeco) | Cystic fibrosis CFTR modulator | Orphan drug with limited competition |
| 05.02.05 | Rituximab (MabThera) | Oncology monoclonal antibody | Contractual supply agreement |
| 09.04.07 | Botulinum toxin typeA (Botox) | Neurology spasticity | Controlled substance handling rules |
| 06.05.02 | Thalidomide (Thalomid) | Immunology multiple myeloma | Special risk management programme |
Understanding whether a product falls under AnnexA is crucial for accurate claims submission. The main impacts are:
The Scottish Medicines Consortium (SMC) and NHSScotland jointly publish amendments to the Tariff. Any change to AnnexA is announced in the SDT Supplementary Notice and is made effective from the start of the next month. Pharmacists are urged to subscribe to the NHS Scotland Pharmacy Updates mailing list to stay informed.
No. The statutory rule prohibits taking any discount from the listed price for these items. If a pharmacy offers a voluntary discount to a patient, it must be recorded separately and cannot affect the NHS reimbursement amount.
The claim will be rejected during the NHS audit process. The pharmacy must resubmit the claim with the correct calculation, and the NHS may impose a small administrative penalty for the error.
The zerodiscount rule applies to all patients regardless of age, diagnosis, or eligibility for other programmes. The rule is purely a pricing exception.
Review cycles are typically annual, though interim updates may occur if market conditions change dramatically (e.g., a new generic launch or a price renegotiation).
There is ongoing discussion within NHSScotland about expanding the zerodiscount framework to include certain biologics and genetherapy products. The goal is to ensure that pricing mechanisms keep pace with rapid advances in pharmacotherapy while protecting the sustainability of the public health system.
Stakeholders are encouraged to submit comments on proposed amendments through the NHS Scotland public consultation portal before the quarterly deadline.
The Part1 AnnexA Zero Discount List is a targeted exception within the Scottish Drug Tariff that safeguards the supply and appropriate reimbursement of highvalue or specialised medicines. By clearly identifying which products are exempt from the statutory discount, the list provides certainty for both pharmacies and the NHS. Ongoing monitoring and transparent updates ensure the list remains fit for purpose as the therapeutic landscape evolves.
