Question 1

Who makes atenolol + chlorthalidone?

Accepted Answer

Atenolol + Chlorthalidone is a fixed-dose combination of Atenolol and Chlorthalidone. There is no combination-level drug master file; it is sourced as a finished combination or built from its component APIs. Its component-API makers are listed below; each holds its own regulatory filing.

Question 2

Where do the APIs in atenolol + chlorthalidone come from?

Accepted Answer

Atenolol: 7 verified API manufacturers. Chlorthalidone: 13 verified API manufacturers. Each links to its own ranked supplier page.

Question 3

What strengths does atenolol + chlorthalidone come in?

Accepted Answer

Common marketed ratios include 50/25, 100/25, 12/12, 25/25, 100/100 (mg per component). Ratios come from the finished-product records as at 29 July 2026.

Atenolol + Chlorthalidone FDC suppliers and manufacturers

Component APIs — where each ingredient comes from

Atenolol API manufacturers

Chlorthalidone API manufacturers

Source this combination

Component molecule pages