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2,2,4,4-Tetramethyl-1,3-cyclobutanediol (CBDO) is an aliphatic diol. This diol is produced as a mixture of cis- and trans-isomers, depending on the relative stereochemistry of the hydroxyl groups. It is used as a monomer for the synthesis of polymeric materials, usually as an alternative to bisphenol A (BPA).
Many patients report increased alertness with the drug. Two rare but very serious effects include aplastic anemia and serious liver damage. The risk of aplastic anemia is between 1:3,600 and 1:5,000, of which 30% of cases are fatal. The risk of liver damage is between 1:24,000 to 1:34,000, of which 40% of cases are fatal. [citation needed]
2,2,4,4-Tetramethylcyclobutanedione is the organic compound with the formula (CH 3) 4 C 4 O 2. The compound is a diketone of cyclobutane, bearing four methyl groups . It is a white solid that is used as a precursor to diverse industrial products.
Tetramethylbutane, sometimes called hexamethylethane, is a hydrocarbon with formula C 8 H 18 or (H 3 C-) 3 C-C(-CH 3) 3. It is the most heavily branched and most compact of the octane isomers, the only one with a butane (C4) backbone. Because of its highly symmetrical structure, it has a very high melting point and a short liquid range; in fact ...
Clemastine, also known as meclastin, is a first-generation H1 histamine antagonist (antihistamine) with anticholinergic properties (drying) and sedative side effects. [1] Like all first-generation antihistamines, it is sedating. [2] [3] Patented in 1960, it came into medical use in 1967. [4]
Side effects in studies were abdominal pain (8–11% of patients as compared to 2–5% under placebo, depending on the study), diarrhea (7% versus 2–3%), nausea (4–6% versus 2–5%), vomiting (3% versus 2%), gastroenteritis (2–3% versus 1%), and opioid withdrawal syndrome (1.5–3.2% versus 0.5–1.5%). The latter was severe but ...
Less-common side effects can include excess air or gas in your stomach, burping, heartburn, indigestion, fast heartbeat, low blood sugar, low energy and fatigue, or even gallstones, Dr. Comite says.
Dimemorfan is an analogue of dextromethorphan (DXM) and its active metabolite dextrorphan (DXO), and similarly to them, acts as a potent agonist of the σ 1 receptor (K i = 151 nM). [ 6 ] [ 7 ] However, unlike DXM and DXO, it does not act significantly as an NMDA receptor antagonist (K i = 16,978 nM), and for this reason, lacks dissociative ...