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Alka-Seltzer is a combination of sodium bicarbonate, aspirin, and anhydrous citric acid used for the relief of heartburn, acid indigestion, and stomach aches. [7] Alka-Seltzer is sold in foil packets, each containing two tablets. Prior to 1984, it was also available stacked in cylindrical glass bottles. It is available in many different flavors.
Cold medicines are a group of medications taken individually or in combination as a treatment for the symptoms of the common cold and similar conditions of the upper respiratory tract. The term encompasses a broad array of drugs, including analgesics , antihistamines and decongestants , among many others.
Form II was reported in 2005, [32] [33] found after attempted co-crystallization of aspirin and levetiracetam from hot acetonitrile. In form I, pairs of aspirin molecules form centrosymmetric dimers through the acetyl groups with the (acidic) methyl proton to carbonyl hydrogen bonds. In form II, each aspirin molecule forms the same hydrogen ...
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Extreme bioavailability differences of up to 4-fold have been reported comparing effervescent tablets with ordinary tablets, highlighting the need for extra bioequivalence studies when switching dosage forms. [14] It is dangerous to swallow an effervescent tablet directly, as the tablet can get stuck in the subglottis and fizzle there.
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Approved indication for dihydrocodeine is the management of moderate to moderately severe pain as well as coughing and shortness of breath. As is the case with other drugs in this group, the antitussive dose tends to be less than the analgesic dose, and dihydrocodeine is a powerful cough suppressant like all other members of the immediate codeine family (see below) and their cousins ...
Another non-aspirin-based variant, Alka-Seltzer Gold, was later released. Since 1978 Alka-Seltzer has been owned by Bayer Schering Pharma AG, Germany. [1] The name "Alka-Seltzer" has been extended to incorporate an entire line of medications sold over the counter and taken by means of rapidly dissolving tablets that form a carbonated solution ...