DEBRIDACE OINTMENT

Indications

• Digestive disorders
• Protein digestion aid
• Wound healing
• Anti-inflammatory treatment

Dosage

Children: Refer to specific product guidelines or consult a healthcare professional for pediatric dosing recommendations.

Adults: Refer to specific product guidelines or consult a healthcare professional for dosing recommendations, as doses can vary based on formulation and indication.

Mechanism of action

Papain works by hydrolyzing peptide bonds in proteins, which facilitates their digestion and absorption. It acts primarily in the gastrointestinal tract, where it helps convert complex proteins into simpler forms that can be easily absorbed. Papain's proteolytic action also contributes to its anti-inflammatory properties, as it can help reduce swelling and promote healing in tissues.

Pharmacodynamics

Papain exhibits its effects through its enzymatic activity on proteins. The breakdown of proteins into smaller peptides and amino acids aids in the digestive process. This enzymatic action is complemented by papain's ability to modulate inflammatory responses, which can be beneficial in treating conditions associated with tissue damage and inflammation.

Pharmacokinetics

Papain is typically administered orally or topically. When taken orally, it is subject to the acidic environment of the stomach, which may affect its stability and activity. However, it is generally well absorbed in the gastrointestinal tract. Topically applied papain is absorbed through the skin, where it can exert local effects. The half-life and specific metabolic pathways of papain are not well characterized due to its natural origin and the variability in formulations.

Contra-indications

• Hypersensitivity to papain or any of its components
• History of allergic reactions to other proteolytic enzymes

Adverse effects

• Allergic reactions including rash, itching, or swelling
• Gastrointestinal disturbances such as nausea, vomiting, or diarrhea
• Potential irritation or inflammation at the site of application

Precautions

• Use with caution in individuals with known allergies to other enzymes or related substances
• Consult a healthcare provider before use in patients with gastrointestinal disorders
• Not recommended for use in infants and young children without medical supervision

Pregnancy

Safety during pregnancy has not been established. Use only if clearly needed and prescribed by a healthcare professional.

Breast-feeding

There is insufficient data on the excretion of papain in human milk. Caution is advised when administering to nursing mothers.

Storage

Store at room temperature away from moisture and heat. Keep tightly closed in a cool, dry place.

Formulations

• Oral tablets
• Topical creams or ointments
• Powder for solution

Indications

• Dry skin
• Ichthyosis
• Eczema
• Psoriasis
• Dermatitis

Dosage

Children: Refer to the BNF for Children for appropriate dosing recommendations for paediatric patients.

Adults: Refer to the specific product information for dosing instructions, as doses may vary based on formulation and intended use.

Mechanism of action

The primary mechanism of ammonia toxicosis appears to be inhibition of the citric acid cycle. There is an increase in anaerobic glycolysis, blood glucose, and blood lactate. Acidosis is manifested. The exact means by which ammonia blocks the citric acid cycle is not known. It is postulated that ammonia saturation of the glutamine-synthesizing system causes a backing-up in the citrate cycle, a decrease in its intermediates, and a decrease in energy production and cellular respiration, which leads to convulsions. The decrease of citrate cycle intermediates is postulated to result from reamination of pyruvic, ketoglutaric, and oxaloacetic acids.

Pharmacodynamics

Urea is a keratolytic emollient that works to treat or prevent dry, rough, scaly, itchy skin. Its emollient properties help to maintain skin hydration and improve the overall condition of the skin.

Pharmacokinetics

Urea is absorbed through the skin and metabolized in the body. It does not have significant systemic effects when used topically, as it primarily acts locally to alter the moisture content of the stratum corneum, thereby enhancing the skin's barrier function and improving hydration.

Adverse effects

• Skin irritation
• Burning sensation
• Dryness
• Redness

Precautions

• Use with caution in individuals with renal impairment
• Avoid contact with eyes
• Discontinue use if severe irritation occurs

Pregnancy

Consult healthcare provider before use, safety in pregnancy not established.

Breast-feeding

Consult healthcare provider before use, safety in breastfeeding not established.

Storage

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

Formulations

• Topical cream
• Topical ointment
• Topical lotion

Mechanism of action

... The primary mechanism of ammonia toxicosis appears to be inhibition of the citric acid cycle. There is an increase in anaerobic glycolysis, blood glucose, and blood lactate ... . Acidosis is manifested. The exact means by which ammonia blocks the citric acid cycle is not known. It is postulated that ammonia saturation of the glutamine-synthesizing system causes a backing-up in the citrate cycle, a decrease in its intermediates, and a decrease in energy production and cellular respiration, which leads to convulsions ... . The decrease of citrate cycle intermediates is postulated to result from reamination of pyruvic, ketoglutaric, and oxaloacetic acids.

Pharmacodynamics

Urea is a keratolytic emollient that works to treat or prevent dry, rough, scaly, itchy skin.