What is the purpose of this 8-K/A filing?

This filing is an amendment to a prior 8-K report, primarily to provide an updated Exhibit 99.1 which includes new Frequently Asked Questions (FAQs) and answers for investors.

Where can investors find the updated FAQs?

The updated FAQs are included as Exhibit 99.1 to this filing and are also being posted on the Schering-Plough Investor Relations website at www.ir.schering-plough.com in the 'Investor FAQs' section.

Why is Schering-Plough providing these FAQs?

Schering-Plough is providing these FAQs to address various questions that investors have indicated interest in, ensuring that this information is accessible to all investors equally.

Is the information in the FAQs considered material?

The company is making the information available through public channels (website posting and broad filing) and indicates they may discuss it with investors, suggesting it is intended to be widely distributed and potentially material, in line with Regulation FD disclosure.

MRK 8-K SEC Disclosure — Aug 13, 2003

Summary

This 8-K/A filing from Schering-Plough Corporation (not Merck & Co., Inc. as initially stated in the prompt, and the event date is August 11, 2003, filed August 12, 2003) is an amendment to a previous 8-K filing. The primary purpose of this amendment is to update Exhibit 99.1, which contains a revised set of Frequently Asked Questions (FAQs) and their corresponding answers for investors. The company is making this information publicly available to ensure broad access, also posting it on their Investor Relations website.

Key Highlights

1Amendment to a previously filed 8-K report.
2Updated Exhibit 99.1, containing new investor FAQs and answers.
3The FAQs address various investor inquiries about the company.
4Information in the FAQs is intended for broad dissemination to all investors.
5The company may discuss the FAQs with investors.
6The FAQs are being posted on the Schering-Plough Investor Relations website for public access.
7Focus on transparency and equal access to information for investors.