Title: Ibuprofen
Content:   Ibuprofen was made available under prescription in the United Kingdom in 1969, and in the United States in 1974. In the years since, the good tolerability profile, along with extensive experience in the population, as well as in so-called phase-IV trials (postapproval studies), have resulted in the availability of ibuprofen OTC in pharmacies worldwide, as well as in supermarkets and other general retailers. Ibuprofen is its International nonproprietary name (INN), British Approved Name (BAN), Australian Approved Name (AAN) and United States Adopted Name (USAN). In the U.S., Motrin has been on the market since 1974, and Advil has been on the market since 1984. Ibuprofen is commonly available in the United States up to the FDA's 1984 dose limit OTC, rarely used higher by prescription. In 2009, the first injectable formulation of ibuprofen was approved in the United States, under the trade name Caldolor.
Title: Stewart Adams (chemist)
Content:  In August 1978, Boots applied to have ibuprofen put in general pharmacies, but the Committee on Safety of Medicines (DHSS) declined; in April 1982, there was another request by Boots. Ibuprofen became on sale for general pharmacy (over-the-counter) in 1983, as Nurofen. Adams said in 2007 "Getting the drug approved by the two countries with the toughest regulatory authorities – the UK and the US – was a goal I wanted to achieve. For me, that was the most exciting time of all." Nurofen was launched 8 August 1983 by Crookes Products Ltd. Ibuprofen went over the counter in the US in June 1984 by the Food and Drug Administration, made by American Home Products. In America, it was made by Whitehall Laboratories, known as Advil, and also sold as Nuprin. Adams retired as Head of Pharmacological Sciences at Boots in 1983. For ibuprofen, Boots received the Queen's Award for Technological Achievement in 1985.
Title: Ibuprofen
Content:  in early pregnancy, it appears to be harmful in later pregnancy and therefore is not recommended. Like other NSAIDs, it works by inhibiting the production of prostaglandins by decreasing the activity of the enzyme cyclooxygenase (COX). Ibuprofen is a weaker anti-inflammatory agent than other NSAIDs. Ibuprofen was discovered in 1961 by Stewart Adams and John Nicholson while working at Boots UK Limited and initially marketed as Brufen. It is available under a number of trade names, including Nurofen, Advil and Motrin. It was first marketed in 1969 in the United Kingdom and in 1974 in the United States. It is available as a generic medication. In 2019, it was the 29th most commonly prescribed medication in the United States, with more than 21million prescriptions.
Title: Ibuprofen
Content:   Ibuprofen was derived from propionic acid by the research arm of Boots Group during the 1960s. The name is derived from the 3 functional groups: isobutyl (ibu) propionic acid (pro) phenyl (fen). Its discovery was the result of research during the 1950s and 1960s to find a safer alternative to aspirin. The molecule was discovered and synthesized by a team led by Stewart Adams, with a patent application filed in 1961. Adams initially tested the drug as treatment for his hangover. The drug was launched as a treatment for rheumatoid arthritis in the United Kingdom in 1969, and in the United States in 1974. Later, in 1983 and 1984, it became the first NSAID (other than aspirin) to be available over the counter (OTC) in these two countries. Dr. Adams was subsequently awarded an Order of the British Empire (OBE) in 
Title: Stewart Adams (chemist)
Content:  A patent was filed in 1962, and granted in 1962, for phenylalkane derivatives. In 1969 ibuprofen was licensed as a prescription drug in the UK, and in 1974 in the US. It was launched in the US in 1974 by Upjohn of Kalamazoo, Michigan as Motrin. In April 1966, Ibufenac (iso-butyl-phenyl-acetic-acid, known as Dytransin) went onto the UK market, but was withdrawn in January 1968 due to causing jaundice, from its toxicity in the liver.
Title: Naproxen
Content:  Syntex first marketed naproxen in 1976, as the prescription drug Naprosyn. They first marketed naproxen sodium under the brand name Anaprox in 1980. It remains a prescription-only drug in much of the world. In the United States, the Food and Drug Administration (FDA) approved it as an over-the-counter (OTC) drug in 1994. OTC preparations of naproxen in the U.S. are mainly marketed by Bayer HealthCare under the brand name Aleve and generic store brand formulations in 220mg tablets. In Australia, packets of 275mg tablets of naproxen sodium are Schedule 2 pharmacy medicines, with a maximum daily dose of five tablets or 1375mg. In the United Kingdom, 250mg tablets of naproxen were approved for OTC sale under the brand name Feminax Ultra in 2008, for the treatment of primary dysmenorrhoea in women aged 15 to 50. In the Netherlands, 220mg and 275mg tablets are available OTC in drugstores, 550mg is OTC only at pharmacies. Aleve became available over the counter in some provinces in Canada on 14 July 2009, but not British Columbia, Quebec or Newfoundland and Labrador; it subsequently became available OTC in British Columbia in January 2010.
Title: Hydrocodone/ibuprofen
Content:  Pharmaceuticals against Knoll's patent on Vicoprofen, ruling the patent was invalid as obvious. This ruling paved the way for Teva's abbreviated new drug application to be approved by the FDA which would allow them to manufacture and market their own generic. Knoll appealed the decision. In April 2003, Teva announced that its abbreviated new drug application had been approved by the FDA, and its generic would begin shipping immediately. In May 2004, the United States Court of Appeals for the Federal Circuit vacated the previous judgment by the U.S. District Court for the Northern District of Illinois, and the case was remanded back for further court proceedings. Teva continued to sell its generic during this time. The patent for Vicoprofen expired on 18 December 2004, officially opening the drug to generic manufacture. In July 2016, the FDA approved another generic equivalent, manufactured by Aurobindo Pharma Limited.
Title: History of aspirin
Content:  found to be the metabolically active derivative of acetanilide: acetaminophen. After clinical trials, Bayer Ltd brought acetaminophen to market as Panadol in 1956. However, Sterling Products did not market Panadol in the United States or other countries where Bayer Aspirin still dominated the aspirin market. Other firms began selling acetaminophen drugs, most significantly, McNeil Laboratories with liquid Tylenol in 1955, and Tylenol pills in 1958. By 1967, Tylenol was available without a prescription. Because it did not cause gastric irritation, acetaminophen rapidly displaced much of aspirin's sales. Another analgesic, anti-inflammatory drug was introduced in 1962: ibuprofen (sold as Brufen in the U.K. and Motrin in 
Title: Ibuprofen
Content:  Ibuprofen is used primarily to treat fever (including post-vaccination fever), mild to moderate pain (including pain relief after surgery), painful menstruation, osteoarthritis, dental pain, headaches, and pain from kidney stones. About 60% of people respond to any NSAID; those who do not respond well to a particular one may respond to another. It is used for inflammatory diseases such as juvenile idiopathic arthritis and rheumatoid arthritis. It is also used for pericarditis and patent ductus arteriosus. If a patient is self-treating with over-the-counter Ibuprofen, it should not be taken for more than 10 days, unless the patient has spoken with his/her doctor.
Title: Ibuprofen brand names
Content:  Nurofen brand name is a range of pain-relief medication containing ibuprofen made by Reckitt. Introduced in 1983, the Nurofen brand was acquired following Reckitt Benckiser's acquisition of Boots Healthcare in 2005. The brand is primarily marketed and sold in the United Kingdom, other parts of Europe, South Africa, Australia and New Zealand. In 2016 it was the biggest selling branded over-the-counter medication sold in Great Britain, with sales of £116.8 million.

Question: when did ibuprofen become available over the counter?
Answer: 1983.
1984.