BGACID GEL

Indications

• Mild skin irritations
• Superficial cuts
• Allergies
• Insect bites
• Fungal infections (e.g., athlete's foot)
• Sore throat
• Hemorrhages
• Peptic ulcers
• Acne

Dosage

Children: Refer to the BNF for Children for appropriate dosing information for paediatric patients, as dosages will depend on the specific condition and formulation used.

Adults: Refer to specific product guidelines for dosage information, as aluminum formulations can vary. Generally, topical applications are used as directed for symptom relief.

Mechanism of action

Aluminum acetate acts as an astringent, causing shrinkage or constriction of body tissues following topical application. This effect occurs through osmotic flow of water away from the area of application, leading to decreased mucous secretions and blood serum discharge. Astringents like aluminum also promote mild coagulation of skin proteins, providing protective effects on the skin and aiding in the healing of minor skin irritations.

Pharmacodynamics

Aluminum compounds exert their effects primarily through their astringent properties, which can lead to reduced inflammation and secretion. The local application of aluminum results in a protective barrier on the skin and mucous membranes, which can diminish symptoms associated with irritation, such as itching or discomfort. Astringents are often indicated in conditions that require the drying of exudates or the protection of damaged skin.

Pharmacokinetics

Aluminum is poorly absorbed through the gastrointestinal tract when ingested, as most aluminum compounds are not soluble in water. When applied topically, aluminum is absorbed minimally, allowing it to act locally without significant systemic effects. The elimination of aluminum occurs primarily through the kidneys, with small amounts excreted in feces. It is important to monitor aluminum levels in patients with renal impairment, as they may be at risk of accumulation and toxicity.

Pregnancy

The safety of aluminum compounds during pregnancy has not been established. Use only if clearly needed.

Breast-feeding

Aluminum is excreted in breast milk. Caution should be exercised when administering to breastfeeding mothers.

Storage

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

Formulations

• Aluminum Acetate solution
• Aluminum Hydroxide gel

Indications

• Nutritional supplementation
• Herbal therapy for various conditions
• Preservation of medicinal properties of plants

Dosage

Children: Dosage for dried herbal preparations in children should be approached cautiously and is best determined by a healthcare professional. Refer to paediatric guidelines for specific dosing recommendations.

Adults: Dosage for dried herbal preparations varies widely depending on the specific herb and its intended use. Refer to specific guidelines or reputable sources for dosing information.

Mechanism of action

The mechanism of action for dried herbal preparations varies depending on the specific plant material involved. Generally, the active constituents in dried herbs can exert their effects through various pathways, such as modulating neurotransmitter systems, influencing metabolic pathways, and acting on specific receptors in the body. For instance, flavonoids, terpenes, and alkaloids found in certain dried herbs can exhibit anti-inflammatory, antioxidant, or antimicrobial properties.

Pharmacodynamics

The pharmacodynamics of dried drugs depend on their specific chemical constituents. These compounds can affect physiological functions, such as modulating inflammatory responses, enhancing immune function, or affecting neurotransmission. The effects can vary widely based on the type of herb, the method of drying, and the concentration of active ingredients.

Pharmacokinetics

The pharmacokinetics of dried herbal preparations can vary significantly based on the specific herb used. Generally, after ingestion, the active compounds are absorbed in the gastrointestinal tract, metabolized primarily by the liver, and then excreted through urine or feces. The bioavailability of these compounds can be influenced by factors such as the form of the preparation (e.g., powder, extract), the presence of other food substances, and individual patient characteristics.

Pregnancy

Safety during pregnancy has not been established. Consult a healthcare provider before use.

Breast-feeding

Consult a healthcare provider before use during breastfeeding.

Storage

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

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

• Hypomagnesemia
• Magnesium deficiency
• Cardiac arrhythmias
• Eclampsia
• Asthma exacerbations
• Migraine prophylaxis

Dosage

Children: Refer to the BNF for Children for pediatric dosing recommendations.

Adults: Refer to clinical guidelines or specific product information for adult dosing.

Mechanism of action

Magnesium acts as a cofactor for over 300 enzymatic reactions in the body. It is essential for ATP production, the synthesis of nucleic acids, and the regulation of calcium homeostasis. By modulating calcium channels and neurotransmitter release, magnesium influences neuromuscular transmission and muscle contraction. It also plays a role in stabilizing cellular membranes and protecting against oxidative stress.

Pharmacodynamics

Magnesium's pharmacodynamics involve its effects on various physiological processes, particularly in the cardiovascular and neuromuscular systems. It helps to maintain normal muscle and nerve function and influences cardiac rhythm. Magnesium is known to inhibit excessive calcium influx into cells, thus contributing to vasodilation and lowering blood pressure. It also has a calming effect on the nervous system, which can help alleviate anxiety and promote relaxation.

Pharmacokinetics

Magnesium is absorbed primarily in the small intestine, with the efficiency of absorption being influenced by dietary factors and the presence of other minerals. The body regulates magnesium levels through renal excretion and intestinal absorption. The half-life of magnesium varies depending on the route of administration, with intravenous administration leading to quicker distribution and elimination. The majority of magnesium is stored in the bones, muscles, and soft tissues, with only a small fraction present in the extracellular fluid.

Contra-indications

• Severe renal impairment
• Myasthenia gravis
• Hypocalcemia
• Hypophosphatemia

Adverse effects

• Diarrhea
• Nausea
• Vomiting
• Abdominal cramping
• Hypotension
• Bradypnea
• Muscle weakness

Interactions

• Antibiotics (e.g., tetracyclines, fluoroquinolones) - may bind and reduce their absorption
• Calcium supplements - may compete for absorption
• Diuretics (especially loop diuretics) - can increase the risk of magnesium deficiency
• ACE inhibitors - may enhance the hypotensive effect
• Neuromuscular blocking agents - may potentiate their effects

Precautions

• Use with caution in patients with renal impairment
• Monitor electrolytes in patients with gastrointestinal losses
• Avoid in patients with heart block
• Caution in elderly patients due to potential for electrolyte imbalance

Pregnancy

Magnesium is generally considered safe during pregnancy and is often recommended for certain conditions, such as preeclampsia.

Breast-feeding

Magnesium is excreted in breast milk but is generally considered safe for use during breastfeeding.

Storage

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

Formulations

• Oral tablets
• Oral solution
• Intravenous injection
• Intramuscular injection

Indications

• Dermatitis
• Eczema
• Psoriasis
• Wound care
• Skin infections
• Burns
• Irritation or inflammation of the skin

Dosage

Children: For paediatric use, apply a thin layer of paste to the affected area as needed, following guidance from a healthcare professional or as directed in pediatric dosing guidelines.

Adults: Apply a thin layer of paste to the affected area as needed, ensuring to follow the specific instructions provided with the formulation or as directed by a healthcare professional.

Mechanism of action

The mechanism of action of paste depends on its active ingredients. Generally, pastes provide a protective barrier, reduce moisture loss, and may deliver anti-inflammatory or antimicrobial agents to the skin. The combination of ingredients can enhance the therapeutic effect, leading to improved healing and symptom relief.

Pharmacodynamics

Pharmacodynamics of paste formulations involves the interaction of its components with skin receptors and the local environment. Active ingredients may exert anti-inflammatory, antimicrobial, or soothing effects. The occlusive nature of pastes can enhance drug absorption and prolong the action of therapeutic agents, leading to improved efficacy in treating skin conditions.

Pharmacokinetics

Pastes are primarily applied topically, and their absorption can vary based on the formulation, the condition of the skin, and the presence of occlusive agents. Systemic absorption is generally minimal, although it can occur, especially with certain active ingredients. The onset of action can vary, typically providing localized effects within a short period after application.

Pregnancy

Safety during pregnancy has not been established; consult a healthcare provider before use.

Breast-feeding

Consult a healthcare provider before use during breastfeeding, as safety is not well-established.

Storage

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

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

Aluminum Acetate is an astringent. An astrignent is a chemical that tends to shrink or constrict body tissues, usually locally after topical medicinal application. The shrinkage or constriction is through osmotic flow of water (or other fluids) away from the area where the astringent was applied. Astringent medicines cause shrinkage of mucous membranes or exposed tissues and are often used internally to check discharge of blood serum or mucous secretions. This can happen with a sore throat, hemorrhages, diarrhea, or with peptic ulcers. Externally applied astringents, which cause mild coagulation of skin proteins, dry, harden, and protect the skin. Acne sufferers are often advised to use astringents if they have oily skin. Astringents also help heal stretch marks and other scars. Mild astringent solutions are used in the relief of such minor skin irritations as those resulting from superficial cuts, allergies, insect bites, or fungal infections such as athlete's foot. Excessive dietary aluminum has been proposed to be a factor contributing to several neurological disorders in humans. Six 8-week-old female Swiss Webster mice were fed for 10 wk purified diets containing 100 (control), 500 or 1000 ug aluminum/g diet. Brain and liver lipid peroxidation was determined by evaluating the production of 2-thiobarbituric acid reactive substances in brain and liver homogenates in the presence or absence of 50 uM ferrous iron. 2-Thiobarbituric acid reactive substances production in the absence of iron in brain homogenates from mice fed the 1000 ug/g diet was higher (30%) than that in the 100 ug/g control group (3.1 vs 2.4 nmol 2-thiobarbituric acid reactive substances/mg protein). The addition of ferrous iron increased 2-thiobarbituric acid reactive substances production in brain homogenates from all 3 dietary groups. The iron induced 2-thiobarbituric acid reactive substances production was 26% higher in the 1000 ug/g brain homogenates than in the 100 ug/g group (4.9 vs 3.9 nmol 2-thiobarbituric acid reactive substances/mg protein). Brain 2-thiobarbituric acid reactive substances production in the presence and absence of iron was similar between the 100 and 500 ug/g aluminum groups. 2-Thiobarbituric acid reactive substances production in liver homogenates measured either with or without iron was similar for the 3 groups. These results show that, in mice, dietary aluminum intoxication leads to increased brain 2-thiobarbituric acid reactive substance production, suggesting that enhanced lipid peroxidation may be one possible mechanism underlying the neurological damage associated with increased tissue aluminum. Evidence is presented indicating that dementias are associated with a relative insufficiency of magnesium in the brain. Such insufficiency may be attributable to low intake or retention of magnesium; high intake of a neurotoxic metal, such as aluminum, which inhibits activity of magnesium requiring enzymes; or impaired transport of magnesium and/or enhanced transport of the neurotoxic metal into brain tissue. It is proposed that Alzheimer's disease involves a defective transport process, characterized by both an abnormally high incorporation of aluminum and an abnormally low incorporation that an altered serum protein contributes to the progression of Alzheimer's disease by having a greater affinity for aluminum than for magnesium, in contrast to the normal protein, which binds magnesium better than aluminum. The altered protein crosses the blood-brain barrier more efficiently than the normal protein and competes with the normal protein in binding to brain neurons. Binding of the altered protein to the target neurons would both facilitate aluminum uptake and impede magnesium uptake. Evidence suggests that albumin is the serum protein that is altered. Aluminum is established as a neurotoxin, although the basis for its toxicity is unknown. It recently has been shown to alter the function of the blood-brain barrier, which regulates ex

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.