Sanofi-aventis Announces 2007 Earnings Ahead of Guidance Sharp Rise in Propose...(ory Notes/Financial Indicators Compar...),Health

Comparable net sales

When we refer to the change in our sales on a "comparable" basis, we mean that we exclude the impact of exchange rate movements and changes in Group structure (acquisitions and divestments of interests in entities and rights to products, and changes in consolidation method for consolidated entities).

We exclude the impact of exchange rates by recalculating sales for the prior period on the basis of exchange rates used in the current period. We exclude the impact of acquisitions by including sales from the acquired entity or product rights for a portion of the prior period equal to the portion of the current period during which we owned them, based on sales information we receive from the party from whom we make the acquisition.

Similarly, we exclude sales in the relevant portion of the prior period when we have sold an entity or rights to a product.

For a change in consolidation method, the prior period is recalculated on the basis of the method used for the current period.

Reconciliation of 2006 fourth-quarter/full-year net sales to 2006 fourth- quarter/full-year comparable net sales:

euro million Q4 2006

2006 fourth-quarter net sales 7,356

Impact of changes in Group structure 29

Impact of exchange rates (321)

2006 fourth-quarter comparable net sales 7,064

euro million FY 2006

2006 full-year net sales 28,373

Impact of changes in Group structure (15)

Impact of exchange rates (1,069)

2006 full-year comparable net sales 27,289

Worldwide presence of a product

When we refer to the "worldwide presence" of a product, we mean our consolidated net sales of that product, minus sales of the product to our alliance partners plus non-consolidated sales made through our
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