Expiry and Shelf Life Management: What to Ask Your Indian Pharma Supplier
Pharmaceutical shelf life management is one of the practical aspects of procurement that separates experienced import buyers from first-timers. A missed shelf life specification on a purchase order can result in product that arrives too close to expiry to sell — wasting money, supply chain effort, and relationship capital.
This post covers what to specify, what to ask, and how to protect yourself.
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Understanding Pharmaceutical Shelf Life
Total shelf life is the period from manufacture during which a pharmaceutical product is expected to remain within its specification — confirmed by the manufacturer's stability studies under defined conditions.- Stability testing is conducted under International Council for Harmonisation (ICH) guidelines (Q1A and related documents), typically covering accelerated conditions (40°C/75% RH for 6 months) and real-time conditions (25°C/60% RH for the full shelf life period) - The expiry date printed on the label reflects the end of this validated shelf life - After the expiry date, the manufacturer no longer guarantees that the product meets its specification
Remaining shelf life is the time from a given date (typically shipment date or arrival date) until the expiry date. This is the practical commercial metric for import buyers.---
Why Remaining Shelf Life at Dispatch Matters
Consider this scenario: - Product total shelf life: 24 months - Manufactured: 10 months ago (at the time of your order) - Remaining shelf life at dispatch: 14 months - Transit time (sea freight): 6 weeks (1.5 months) - Remaining shelf life on arrival: 12.5 months
If your country's pharmacies or distributors need products with at least 12 months remaining, you have barely enough to move the product. If your distributor adds 3 months of local warehousing before retail sale, you may have unsaleable short-dated stock within 9 months.
This is a common problem — entirely preventable by specifying minimum remaining shelf life upfront.
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What to Specify in Your Purchase Order
Option 1: Percentage of total shelf life remaining "Minimum 75% of total stated shelf life remaining at the time of dispatch from India."For a 24-month product, this means at least 18 months remaining on dispatch day. This approach automatically adjusts for products with different total shelf lives.
Option 2: Absolute minimum months "Minimum 18 months remaining shelf life at the time of dispatch from India."This is simpler to state and verify, but fixed — you need to know the product's total shelf life to set an appropriate absolute number.
Which to use: Either approach works; the key is that it is stated explicitly in your PO and agreed by the supplier before shipment.---
Key Questions to Ask Your Supplier
1. What is the total stated shelf life for this product? The answer tells you whether your minimum remaining shelf life specification is achievable for currently available stock. 2. What is the manufacturing date of currently available stock? This, combined with total shelf life, tells you exactly how much remaining shelf life is available right now. 3. Can you confirm the remaining shelf life at dispatch in writing on the Proforma Invoice / order acknowledgement? Always get the shelf life commitment in writing before you pay. 4. Do you have newer batch stock coming in? If the current available batch is close to your minimum threshold, a newer batch may be in transit from the manufacturer — worth waiting for if your timeline permits. 5. What is your policy on short-dated goods? Understand the supplier's position on returns or credit for product that arrives short-dated despite a stated commitment. This should be agreed in writing.---
Downstream Shelf Life Requirements: Work Back from Your Market
The right minimum remaining shelf life specification for your purchase order depends on your distribution chain's requirements:
- Your country's regulatory authority may specify minimum shelf life at import (check your national regulatory rules) - Your downstream distributors / pharmacies may have their own minimum acceptance criteria - Your own warehousing time (between arrival and distribution) must be factored in
Work backwards from these requirements to determine the minimum shelf life you need at dispatch.
Example calculation: - Regulator requires: 12 months at import - Transit time: 6 weeks (~1.5 months) - Safety buffer: 1 month - Minimum at dispatch = 12 + 1.5 + 1 = 14.5 months → specify 15 months minimum---
Batch Documentation for Shelf Life Verification
The CoA issued by the manufacturer includes: - Date of manufacture - Expiry date
These two fields allow you to verify the total shelf life and calculate remaining shelf life at any point. Compare the CoA dates to what the supplier communicated at order stage — any discrepancy needs to be resolved before acceptance.
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Contact Bharat Medex — we confirm shelf life status for available stock at the quotation stage and commit remaining shelf life in writing on all Proforma Invoices.
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