Stability, storage and transport

What stability evidence addresses

WHO stability guidance describes the evidence supporting the stability of active substances and finished products. The relevant data concern a particular material or formulation under defined conditions; the container and the intended period also matter.

A shelf-life statement therefore cannot be transferred freely between products sharing an ingredient. A different formulation, primary pack or presentation may change the assessment. A portfolio page should distinguish proposed attributes from conditions supported by an approved product dossier.

Read the actual conditions

The eventual product information may address temperature, protection from light or moisture, freezing, and the period after opening or preparation. Read those instructions as a connected set. A general description such as “keep cool” cannot safely replace an exact authorised condition.

Nor is refrigeration automatically an improvement for every product. A medicine intended for one condition may be harmed by an unsuitable alternative. Questions about a dispensed medicine should be directed to the pharmacist or treating professional using the actual pack and approved information.

Transport is a real route with handovers

WHO guidance for time- and temperature-sensitive pharmaceutical products addresses the storage and transport context for products that require those controls. WHO distribution guidance also considers risks across supply-chain activities.

A practical route review describes what happens between dispatch and receipt: carriers, handovers, temporary storage, customs time and the receiving facility. A short flight does not necessarily mean a short total exposure period. The planned journey should be considered as a whole.

When conditions deviate

A temperature excursion is a question requiring assessment against the product-specific evidence and circumstances. The maximum or minimum reading alone may be insufficient without duration, timing and the complete storage history. Returning a product to its normal conditions does not automatically resolve a possible quality issue.

Record the facts and seek a decision from the responsible quality function or healthcare professional. This article provides no general permission to release, dispense or use a product after a deviation, and no universal allowable excursion can be inferred from it.

What to ask in a professional enquiry

• What exact product and presentation are being discussed?
• Which document establishes the storage condition and shelf life?
• Do unopened and in-use conditions differ?
• What is the intended route, including temporary storage?
• Who receives and assesses a reported transport deviation?
• What evidence will accompany the proposed shipment?

Keep the answers attached to the product identity and document version. If the presentation changes during development, review whether the previous storage and logistics assumptions still apply.

The Luang Pharma development context

The Boten portfolio includes planned presentations with different technical characteristics. No single website-wide storage statement would be appropriate for all of them. Final conditions, shelf life and shipment requirements require product-specific development and the applicable approval.

Professional enquiries should identify the relevant portfolio entry and destination. The distribution page explains the information useful for a future supply-chain discussion. This resource is educational and does not replace the instructions for a medicine already supplied by an authorised source.

Separate labelled storage, shipping controls and excursion assessment

The labelled storage condition is a product requirement. The shipping plan is an operational method intended to keep the product within appropriate conditions. An excursion assessment is a documented decision about a specific event. These are connected but not interchangeable.

A generic statement such as “cold chain” is not enough to establish a shipping range, allowed duration or post-excursion disposition. Those decisions need the product-specific stability basis, packaging configuration, monitoring record and the applicable quality procedure.

What an excursion review needs

A useful excursion record identifies the affected product and batch, the labelled storage condition, the measured temperatures, the duration and timing of the event, the transport or storage configuration and any relevant stability data. The assessment should identify who made the disposition decision and what evidence supported it.

Do not infer a shelf life or acceptable excursion from another strength or another manufacturer’s product. Stability conclusions belong to the exact formulation, container-closure system and evidence package to which they were established.