Historical clue formulations

• Headache helper — 2021-08-01
• It's a relief — 2015-04-16
• Trademark of 1899 that's no longer protected — 2012-10-17
• Trademark forfeited by Bayer under the Treaty of Versailles — 2011-07-27
• Relief provider — 2008-12-06
• It's a relief — 2008-06-04
• Offering from St. Joseph — 2008-05-25
• "Hair of the dog" alternative — 2007-03-17
• Headache queller — 2004-12-27
• Heart protector — 2004-09-03
• Headache helper — 2004-07-07
• 1897 Felix Hoffmann discovery — 2004-02-20
• It's a relief — 1998-10-18
• Unlined tablet — 1994-06-29