The combination oxycodone/paracetamol (North American trade name Percocet, generic Endocet and Ratio-Oxycocet in Canada) is a combined opioid/non-opioid pain reliever used to treat moderate to severe acute (short-term) pain, marketed by Endo International plc, formerly Endo Pharmaceuticals.
Benzocaine, sold under the brand name Orajel among others, is a local anesthetic commonly used as a topical pain reliever or in cough drops.
 It is the active ingredient in many over-the-counter anesthetic ointments such as products for oral ulcers.
 It is also combined with antipyrine to form A/B otic drops to relieve ear pain and remove earwax.
The Quiz Kids Challenge is an American game show that was based loosely on the "Quiz Kids" programs of the past, which involved schoolchildren trying to answer questions posed to them by various adults.
Quiz Kids (sometimes Puzzler Quiz Kids) is a children's puzzle magazine.
 Launched in 1987, it is the longest-running magazine of this genre.
 Based in the UK, each issue comprises crosswords, dot-to-dots, spot the differences, word searches, and various other challenges created for children aged 7–12.
 The puzzles are created specially for the magazine, in line with the guidelines of the UK's National Curriculum.
 s of 2015 "Quiz Kids" is published bi-monthly, but it has previously been published both quarterly and monthly.
 It is also published in New Zealand.
Brioschi is an Italian company founded in 1907 as "Achille Brioschi & C." to "produce and make commerce of chemicals, liquors and similars"; in 1914 the society was quoted on the Milan stock exchange.
 In the 1970s Brioschi was transformed into an investment company and today’s Brioschi Sviluppo Immobiliare is a real estate contractor, no longer bearing any relationship to the epoch-making "cachet Brioschi" which was once its staple product.
 Its offshoot, the American company Brioschi Pharmaceuticals, LLC, continued to market the effervescent antacid in the United States, however in 2013 Brioschi Pharmaceuticals LLC filed for bankruptcy and discontinued selling Brioschi products in North America.
 That was until 2015 when the Canadian company Neobourne Pharma LP.
 obtained control of the Brioschi Brand and trademark for North America.
 Neobourne Pharma is now marketing and selling the effervescent antacid in the United States and in Canada.
Bromo-Seltzer (acetaminophen, sodium bicarbonate, and citric acid), was a brand of antacid to relieve pain occurring together with heartburn, upset stomach, or acid indigestion.
 First produced by inventor Isaac E. Emerson's drug company of Baltimore, Maryland, in 1888, Bromo-Seltzer was sold in the United States in the form of effervescent granules which must be mixed with water before ingestion.
Antipyrine and benzocaine ear drops is a medication for the treatment of ear pain caused by otitis media.
 It combines antipyrine, a pain reliever, benzocaine, a numbing agent to treat ear pain, and hydroxyquinoline sulfate, an antiseptic.
 It is sold as Auralgan, Aurodex, Auroto, among other brands, and is abbreviated as A/B otic drops.
The New Quiz Kids was a short-lived television series, based on the 1950s game show "Quiz Kids".
 Two separate seasons were produced in Canada in 1978-1979 by the Global Television Network in association with RKO Television and Columbia Pictures.
Alka-Seltzer is an effervescent antacid and pain reliever first marketed by the Dr. Miles Medicine Company of Elkhart, Indiana, United States.
 It was developed by head chemist Maurice Treneer.
 Alka-Seltzer is marketed for relief of minor aches, pains, inflammation, fever, headache, heartburn, stomachache, indigestion, acid reflux and hangovers, while neutralizing excess stomach acid.
 It was launched in 1931.
 A spin-off of Alka-Seltzer made to relieve colds and flu, Alka-Seltzer Plus, was later introduced.
 A short-lived antacid non-aspirin variant, Alka-Mints, was introduced in 1994 and discontinued in 1997.
 Another non-aspirin-based variant, Alka-Seltzer Gold, was later released.
Quiz Kids was a radio and TV series of the 1940s and 1950s.
 Created by Chicago public relations and advertising man Louis G. Cowan, and originally sponsored by Alka-Seltzer, the series was first broadcast on NBC from Chicago, June 28, 1940, airing as a summer replacement show for "Alec Templeton Time".
 It continued on radio for the next 13 years.
 On television, the show was seen on NBC and CBS from July 6, 1949 to July 5, 1953, with Joe Kelly as quizmaster, and again from January 12 to September 27, 1956, with Clifton Fadiman as host.

Question: Who developed the effervescent antacid and pain reliever which originally sponsored Quiz Kids?
Answer: Maurice Treneer