HAES-STERIL 6% INJECTION

Indications

• Alcohol use disorder
• Anxiety disorders
• Sedation
• Muscle relaxation

Dosage

Children: Refer to the BNF for Children for specific dosing guidelines in paediatric populations.

Adults: Refer to the specific BNF guidelines for dosing related to alcohol use disorder and other indications.

Mechanism of action

Ethyl groups serve primarily as substituents in organic chemistry, influencing the properties and reactivity of the parent molecules. In the context of ethanol, which contains an ethyl group, its mechanism of action involves the enhancement of gamma-aminobutyric acid (GABA) receptor activity, leading to increased inhibitory neurotransmission. This results in its sedative, anxiolytic, and muscle relaxant effects.

Pharmacodynamics

The pharmacodynamics of compounds containing the ethyl group, particularly ethanol, include its effects on the central nervous system, where it acts as a depressant. Ethanol enhances the effects of GABA, resulting in sedation, impaired motor function, and decreased anxiety. It can also affect the dopaminergic pathways, leading to the release of dopamine, which contributes to its reinforcing properties.

Pharmacokinetics

Ethanol is rapidly absorbed from the gastrointestinal tract, with peak blood concentrations typically reached within 30 to 90 minutes after consumption. It is metabolized primarily in the liver by alcohol dehydrogenase and aldehyde dehydrogenase, with a first-order elimination kinetics, typically at a rate of 10 to 15 mL of pure alcohol per hour. Ethanol is also known to exhibit a volume of distribution of approximately 0.5 to 0.7 L/kg in adults.

Mechanism of action

The hydroxyl group acts as a nucleophile, participating in various biochemical reactions, including the degradation of reactive oxygen species. It helps in the detoxification of oxidized guanosine triphosphate (GTP) and deoxyguanosine triphosphate (dGTP), which is critical for maintaining cellular integrity and function.

Pharmacodynamics

The presence of hydroxyl groups in compounds can significantly alter their pharmacological effects, enhancing solubility and reactivity. Hydroxyl groups can stabilize reactive intermediates, leading to increased efficacy in biochemical pathways, particularly in processes involving oxidative stress and cellular detoxification.

Pharmacokinetics

Hydroxyl-containing compounds typically exhibit variable absorption, distribution, metabolism, and excretion profiles depending on their specific structure. The pharmacokinetics of hydroxyl as a standalone entity is not well-defined, but its presence in larger molecules often influences their bioavailability and elimination.

Pregnancy

There is insufficient data to determine the safety of hydroxyl in pregnancy. Caution is advised.

Breast-feeding

There is no specific information available regarding the excretion of hydroxyl in human milk. Caution is advised.

Storage

Store in a cool, dry place away from direct sunlight.

Indications

• Nutritional supplementation
• Energy source in enteral nutrition
• Excipient in pharmaceutical formulations

Dosage

Children: Refer to specific guidelines or product inserts for dosing information, as it can vary based on the context of use.

Adults: Refer to specific guidelines or product inserts for dosing information, as it can vary based on the context of use.

Mechanism of action

Starch is broken down into glucose units by enzymes such as amylase during digestion. The glucose is then absorbed in the intestines and utilized for energy production in the body's cells. This pathway involves hydrolysis of the glycosidic bonds, converting starch into simpler sugars.

Pharmacodynamics

Starch primarily serves as an energy source. Its digestion and absorption lead to an increase in blood glucose levels, which provides energy for metabolic processes. In this context, it plays a crucial role in maintaining energy homeostasis in the body.

Pharmacokinetics

Starch is not absorbed in its polymeric form; it must first be enzymatically hydrolyzed into simpler sugars such as maltose and glucose. The digestion and absorption of starch occur predominantly in the small intestine, with glucose being readily absorbed into the bloodstream. The rate of absorption can vary depending on the type of starch and its physical form.

Adverse effects

• Allergic reactions
• Gastrointestinal discomfort
• Diarrhea
• Constipation

Precautions

• Use with caution in individuals with known allergies to starch or starch derivatives
• Monitor for gastrointestinal symptoms in patients with a history of digestive disorders

Pregnancy

Starch is generally considered safe for use during pregnancy. However, it should be consumed in moderation as part of a balanced diet.

Breast-feeding

Starch is deemed safe for nursing mothers when used in moderation as part of a balanced diet.

Storage

Store in a cool, dry place away from moisture and direct sunlight.

Formulations

• Powder
• Granules
• Tablets
• Suspensions