Exhibit 99.4

|                      |                                             |                    | PFIZER INC              
|--------------------- | ------------------------------------------- | ------------------ | ------------------------
|                      |                                             |                    | SEGMENT/PRODUCT REVENUES
|                      |                                             |                    | FOURTH QUARTER 1999     
|(millions of dollars)
|                      |                                             |                    |                         
|                      |                                             |                    |                         
|                      |                                             |                    |                         
|                      |                                             |                    |                         
|TOTAL REVENUES        | 7,534                                       | 6,551              | 15                      
|                      |                                             |                    |                         
|PHARMACEUTICALS       | 6,113                                       | 5,221              | 17                      
|                      | TOTAL HUMAN PHARMACEUTICALS                 | 5,598              | 4,744                   
|                      | - CARDIOVASCULAR DISEASES                   | 2,485              | 1,963                   
|                      |                                             | LIPITOR            | 1,134                   
|                      |                                             | NORVASC            | 807                     
|                      |                                             | CARDURA            | 213                     
|                      |                                             | ACCUPRIL/ACCURETIC | 136                     
|                      |                                             | PROCARDIA XL       | 138                     
|                      | - INFECTIOUS DISEASES                       | 1,032              | 1,019                   
|                      |                                             | ZITHROMAX          | 449                     
|                      |                                             | DIFLUCAN           | 276                     
|                      |                                             | VIRACEPT           | 123                     
|                      |                                             | TROVAN             | (5)                     
|                      | - CENTRAL NERVOUS SYSTEM
  DISORDERS        | 898                | 764                     
|                      |                                             | ZOLOFT             | 507                     
|                      |                                             | NEURONTIN          | 294                     
|                      |                                             | ARICEPT*           | 28                      
|                      | - DIABETES                                  | 211                | 273                     
|                      |                                             | GLUCOTROL XL       | 67                      
|                      |                                             | REZULIN            | 135                     
|                      | - ALLERGY                                   | 134                | 108                     
|                      |                                             | ZYRTEC             | 133                     
|                      | - VIAGRA                                    | 277                | 233                     
|                      | - ALLIANCE REVENUE (Aricept
  and Celebrex) | 214                | 28                      
|                      | - CAPSUGEL                                  | 101                | 95                      
|                      | - ANIMAL HEALTH                             | 414                | 382                     
|                      |                                             |                    |                         
|CONSUMER PRODUCTS     | 1,421                                       | 1,330              | 7                       
|                      | - CONSUMER HEALTH CARE
  PRODUCTS           | 642                | 588                     
|                      | - CONFECTIONERY PRODUCTS                    | 527                | 504                     
|                      | - SHAVING PRODUCTS                          | 201                | 189                     
|                      | - TETRA                                     | 51                 | 49                      

* - Represents direct sales under license agreement with Eisai Co., Ltd.

M+ - Change greater than one thousand percent.

Restated to reflect the merger with Warner-Lambert Company in June 2000, which was accounted for as a pooling of interests.

Certain amounts and percentages may reflect rounding adjustments.

Certain prior year data have been reclassified to conform to the current year presentation.