Description

Buy Diazapam 10Mg UK

Buy Diazapam 10Mg UK Diazepam does not possess any chiral centers in its structure, but it does have two conformers. The two conformers mentioned were the ‘P’-conformer and ‘M’-conformer. Diazepam is an equimolar mixture and it was shown through CD spectra in serum protein solutions, that the ‘P’-conformer is preferred by α1-acid glycoprotein binding.

The drug diazepam occurs as a pale yellow-white crystalline powder without a distinctive smell and has a low molecular weight (MW = 284.74 g/mol^[16]). This classic aryl 1,4-benzodiazepine possesses three acceptors and no hydrogen bond donors. Diazepam is moderately lipophilic with LogP (Octanol-Water Partition Coefficient) value of 2,82 and hydrophilic with a TPSA (Topological Polar Surface Area) value of 32.7 Ų.^[16] The LogP value indicates that diazepam tends to dissolve more readily in lipid-based environments, such as chloroform, acetone, ethanol and ether, compared to water. The TPSA value implies that a segment of the molecule exhibits a degree of polarity or hydrophilicity and represents the collective surface area of polar atoms, like oxygen or nitrogen, along with their connected hydrogen atoms. A TPSA value of 32,7 Ų signifies a moderate level of polarity within the compound. TPSA is especially useful in medical chemistry as it shows the ability of a molecule to permeate cells. Molecules with PSA value smaller than 60-70 Ų have a better ability to permeate cells.^[27] The balance between its lipophilic and hydrophilic characteristics can impact various aspects of the molecule’s behavior, including its solubility, absorption, distribution, metabolism, and potential interactions within the biological system.

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Diazepam is overall a stable molecule. The British Pharmacopoeia lists it as being very slightly soluble in water, soluble in alcohol, and freely soluble in chloroform. The United States Pharmacopoeia lists diazepam as soluble 1 in 16 ethyl alcohol, 1 in 2 of chloroform, 1 in 39 ether, and practically insoluble in water. The pH of diazepam is neutral (i.e., pH = 7). Due to additives such as benzoic acid/benzoate in the injectable form.^{[clarification needed][28]} Diazepam has a shelf life of five years for oral tablets and three years for IV/IM solutions.^[29] Diazepam is stored at room temperature (15–30 °C). The solution for parenteral injection is kept so that it is protected from light and kept from freezing. The oral forms are stored in air-tight containers and protected from light.^[30]

Diazepam can be absorbed into plastics, so liquid preparations are not kept in plastic bottles or syringes, etc. As such, it can leach into the plastic bags and tubing used for intravenous infusions. Absorption appears to depend on several factors, such as temperature, concentration, flow rates, and tube length. Diazepam is not be administered if a precipitate has formed and does not dissolve.^[30]

Diazepam is mainly used to treat anxiety, insomnia, panic attacks, and symptoms of acute alcohol withdrawal. It is also used as a premedication for inducing sedation, anxiolysis, or amnesia before certain medical procedures (e.g., endoscopy).^[31][32] In 2020, it was approved for use in the United States as a nasal spray to interrupt seizure activity in people with epilepsy.^[6][33] Diazepam is the most commonly used benzodiazepine for “tapering” benzodiazepine dependence due to the drug’s comparatively long half-life, allowing for more efficient dose reduction. Benzodiazepines have a relatively low toxicity in overdose.^[20]