RELCER COMBINATION PRODUCT GEL

Dosage

Children: Refer to specific guidelines for pediatric dosing; consult the BNF for Children for accurate dosage information.

Adults: Refer to specific guidelines for use; dosage may vary based on the context of use.

Mechanism of action

Hydroxide ions act primarily as bases, neutralizing acids to form water and salts. They participate in various biochemical pathways, including selenium metabolism and the degradation of reactive oxygen species. Hydroxide can influence enzyme activity and stability by altering the pH of the environment, thereby affecting metabolic reactions.

Pharmacodynamics

Hydroxide ions can impact biological processes by changing the local pH, which influences enzyme activity, ion transport, and the solubility of other compounds. Their ability to neutralize acids can help regulate physiological pH, contributing to homeostasis in living organisms.

Pharmacokinetics

As an inorganic ion, hydroxide does not undergo traditional pharmacokinetic processes like absorption, distribution, metabolism, or excretion. Instead, it is rapidly equilibrated in biological fluids and participates in acid-base reactions, having immediate effects on the local environment.

Pregnancy

There is limited information regarding the use of hydroxide during pregnancy. Consult a healthcare professional for advice.

Breast-feeding

Limited data is available on the excretion of hydroxide in breast milk. Consult a healthcare professional before use.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Indications

• Gastroesophageal reflux disease (GERD)
• Peptic ulcer disease
• Dyspepsia
• Heartburn
• Gastritis

Dosage

Children: Refer to specific product guidelines for dosing in children, as it can vary based on formulation and condition being treated.

Adults: Refer to specific product guidelines for dosing, as it can vary based on formulation and condition being treated.

Mechanism of action

Luminium salts, such as aluminum hydroxide, work by reacting with hydrochloric acid in the stomach to form aluminum chloride and water, thereby neutralizing stomach acidity. This reaction increases the pH level in the gastric environment, which helps to relieve discomfort associated with acid-related conditions. The mechanism is largely physical and chemical rather than involving complex biological pathways.

Pharmacodynamics

The pharmacodynamics of aluminum compounds involve their ability to bind to gastric acid, reducing acidity and increasing gastric pH. This action helps to provide symptomatic relief from conditions like gastroesophageal reflux disease (GERD), peptic ulcers, and gastritis. The antacid effect is typically rapid, providing quick relief of symptoms, while the duration of action can vary based on formulation and dosage.

Pharmacokinetics

Aluminum compounds are poorly absorbed in the gastrointestinal tract, with only a small percentage entering systemic circulation. The majority of aluminum remains in the gut, exerting its local antacid effects. The elimination of aluminum occurs primarily through the kidneys, and patients with renal impairment may require careful monitoring due to the risk of aluminum accumulation and toxicity. The onset of action is typically within minutes, but the duration can be influenced by food intake and other factors.

Adverse effects

• Gastrointestinal disturbances
• Constipation
• Electrolyte imbalances
• Bone pain
• Neurological symptoms such as confusion or cognitive impairment

Interactions

• May interact with antacids, affecting absorption
• Potentially decreased efficacy of certain medications due to altered gastrointestinal motility

Precautions

• Use with caution in patients with renal impairment
• Monitor patients for signs of toxicity, especially with prolonged use
• Consider potential interactions with other medications

Pregnancy

Luminium should be used during pregnancy only if clearly needed, and the potential benefits must outweigh the risks.

Breast-feeding

It is not known whether luminium is excreted in human milk. Caution should be exercised when administered to breastfeeding women.

Storage

Store in a cool, dry place away from direct sunlight. Keep out of reach of children.

Indications

• Flatulence
• Bloating
• Gastroesophageal reflux disease
• Functional dyspepsia

Dosage

Children: For children, refer to the BNF for Children for specific dosing recommendations.

Adults: The usual adult dose is 40 to 125 mg taken after meals and at bedtime, as needed.

Mechanism of action

Simethicone is a surfactant that decreases the surface tension of gas bubbles in the gastrointestinal tract, facilitating their expulsion. It acts by forming a film of low surface tension that promotes the coalescence of mucus-surrounded gas bubbles, allowing for easier passage of gas.

Pharmacodynamics

Simethicone decreases the surface tension of gas bubbles in the gastrointestinal tract, facilitating their expulsion. Its effects are generally short-lived, as it is typically administered as needed. The therapeutic index is wide since it is not absorbed systemically, making it safe for use in various patient populations.

Pharmacokinetics

Simethicone is not systemically absorbed following oral administration, which contributes to its safety profile. Due to its lack of systemic absorption, specific pharmacokinetic parameters such as half-life, clearance, and volume of distribution are not applicable.

Pregnancy

Simethicone can be used during pregnancy as there are no known risks associated with its use.

Breast-feeding

Simethicone is considered safe to use during breastfeeding, as it is not absorbed systemically.

Storage

Store in a cool, dry place, away from direct sunlight. Keep out of reach of children.

Formulations

• Oral suspension
• Chewable tablets
• Soft gels

Mechanism of action

Simethicone is a surfactant that decreases the surface tension of gas bubbles in the gastrointestinal tract, more easily allowing gas to exit the body. The clinical use of simethicone is based on its antifoam properties. Silicone antifoams spread on the surface of aqueous liquids, forming a film of low surface tension and thus causing collapse of foam bubbles. Simethicone reportedly allows mucus-surrounded gas bubbles in the GI tract to coalesce and be expelled.

Pharmacodynamics

Simethicone decreases the surface tension of gas bubbles in the gastrointestinal tract, facilitating their expulsion. It has a short duration of action as it is generally given as needed, and a wide therapeutic index as it is not systemically absorbed.