Product Information
Registration Status: ActivePOLY-N OINTMENT is approved to be sold in Singapore with effective from 1990-05-23. It is marketed by POLI MEDICAL COMPANY PTE LTD, with the registration number of SIN04505P.
This product contains Benzoic Acid 6% w/w,Salicylic Acid 10% w/w,Sulphur Precipitated 4% w/w, and Titanium Dioxide 10% w/w in the form of OINTMENT. It is approved for TOPICAL use.
This product is manufactured by BEACONS PHARMACEUTICALS PTE LTD in SINGAPORE.
It is an Over-the-counter Medicine that can be freely obtained from any retailer
Description
Benzyl benzoate is one of the older preparations used to treat scabies. Scabies is a skin infection caused by the mite sarcoptes scabiei. It is characterised by severe itching (particularly at night), red spots, and may lead to a secondary infection. Benzyl benzoate is lethal to this mite and so is useful in the treatment of scabies. It is also used to treat lice infestation of the head and body. Benzyl benzoate is not the treatment of choice for scabies due to its irritant properties.
Indication
Used to kill lice and the mites responsible for the skin condition scabies.
Mechanism of Action
Benzyl benzoate exerts toxic effects on the nervous system of the parasite, resulting in its death. It is also toxic to mite ova, though its exact mechanism of action is unknown. In vitro, benzyl benzoate has been found to kill the Sarcoptes mite within 5 minutes.
Pharmacokinetics
- Absorption
- No data are available on percutaneous absorption of benzyl benzoate. Some older studies have suggested some percutaneous absorption, however the amount was not quantified.
- Distribution
- Metabolism
- Rapidly hydrolyzed to benzoic acid and benzyl alcohol, which is further oxidized to benzoic acid. The benzoic acid is conjugated with glycine to form hippuric acid.
- Elimination
Toxicity
Oral, rabbit: LD50 = 1680 mg/kg; Skin, rabbit: LD50 = 4000 mg/kg. Symptoms of overdose include blister formation, crusting, itching, oozing, reddening, or scaling of skin; difficulty in urinating (dribbling); jerking movements; sudden loss of consciousness.
Active Ingredient/Synonyms
Acarobenzyl | Benylate | Benzevan | Benzoate de benzyle | Benzoesäurebenzylester | Benzoic acid phenylmethylester | Benzoic acid, benzyl ester | Benzoic acid, phenylmethyl ester | Benzyl benzoat | Benzylis benzoas | Phenylmethyl benzoate | Benzyl Benzoate |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.
Description
A compound obtained from the bark of the white willow and wintergreen leaves, and also prepared synthetically. It has bacteriostatic, fungicidal, and keratolytic actions. Its salts, the salicylates, are used as analgesics.
Indication
Key additive in many skin-care products for the treatment of acne, psoriasis, callouses, corns, keratosis pilaris and warts.
Mechanism of Action
Salicylic acid directly and irreversibly inhibits the activity of both types of cyclo-oxygenases (COX-1 and COX-2) to decrease the formation of precursors of prostaglandins and thromboxanes from arachidonic acid. Salicylate may competitively inhibit prostaglandin formation. Salicylate's antirheumatic (nonsteroidal anti-inflammatory) actions are a result of its analgesic and anti-inflammatory mechanisms. Salicylic acid is a key ingredient in many skin-care products for the treatment of acne, psoriasis, calluses, corns, keratosis pilaris, and warts. It works by causing the cells of the epidermis to slough off more readily, preventing pores from clogging up, and allowing room for new cell growth. Because of its effect on skin cells, salicylic acid is used in several shampoos used to treat dandruff. Salicylic acid is also used as an active ingredient in gels which remove verrucas (plantar warts). Salicylic acid inhibits the oxidation of uridine-5-diphosphoglucose (UDPG) competitively with nicotinamide adenosine dinucleotide (NAD) and noncompetitively with UDPG. It also competitively inhibits the transferring of glucuronyl group of uridine-5-phosphoglucuronic acid (UDPGA) to the phenolic acceptor. The wound-healing retardation action of salicylates is probably due mainly to its inhibitory action on mucopolysaccharide synthesis.
Toxicity
Oral rat LD50: 891 mg/kg. Inhalation rat LC50: > 900 mg/m3/1hr. Irritation: skin rabbit: 500 mg/24H mild. Eye rabbit: 100 mg severe. Investigated a mutagen and reproductive effector.
Active Ingredient/Synonyms
2-Carboxyphenol | 2-Hydroxybenzoic acid | O-carboxyphenol | O-hydroxybenzoic acid | Salicylic acid |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.
Description
Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. Generally it is sourced from ilmenite, rutile and anatase.
Indication
In the pharmaceutical industry, titanium dioxide is used in most sunscreens to block UVA and UVB rays, similar to zinc oxide. It is also commonly used as pigment for pharmaceutical products such as gelatin capsules, tablet coatings and syrups.
Mechanism of Action
Diminish the penetration of ultraviolet (UV) light through the epidermis by absorbing UV radiation within a specific wavelength range. The amount and wavelength of UV radiation absorbed are affected by the molecular structure of the sunscreen agent.
Pharmacokinetics
- Absorption
- When male and female rats were fed a diet containing titanium dioxide (100 g/kg) for a period of about 32 days, a significant retention of titanium of 0.06 and 0.11 mg/kg wet weight was found only in the muscles; no retention was observed in the liver, spleen, kidney, bone, plasma, or erythrocytes
- Distribution
- Six hours after titanium dioxide was administered to rats through IV injection at 250 mg/kg body weight, the highest concentration appeared in the liver; after 24 hours, the highest concentration was detected in the celiac lymph nodes, which filter the lymph from the liver.
- Metabolism
- Rats were intraperitoneal injected with 1.60 g/100 g body wt of TiO(2) in saline solution. Organs (liver, spleen, lung) were processed for histological evaluation. Reactive oxygen species (ROS) in alveolar macrophages obtained by bronchoalveolar lavage (BAL) were evaluated using the nitroblue tetrazolium test and quantitative evaluation by digital image analysis. The histological analysis of organs revealed the presence of titanium in the parenchyma of these organs with no associated tissue damage. Although in lung alveolar macrophages TiO(2) induced a significant rise in ROS generation, it failed to cause tissue alteration. This finding may be attributed to an adaptive response.
- Elimination
Clearance
The clearance of titanium dioxide from the lungs was studied in rats after inhalation of 15 or 100 mg/cu m. The average median aerodynamic diameter of the titanium dioxide particles was 1.48 um. After a single exposure, about 40-45% of the deposited particles were cleared from the lung in 25 days. At 15 mg/cu m, 0.7% was found in the hilar lymph nodes indicating penetration of titanium dioxide particles from alveoli into the lymphatic system and partial clearance by the lymphatic route. The clearance rate was similar after intra-tracheal administration of titanium dioxide. At an exposure of 100 mg/cu m, the clearance rate decreased drastically. /Other researchers/ demonstrated the presence of titanium dioxide in the lymphatic systems of 3 workers employed in processing titanium dioxide pigments.
Toxicity
Rat - LD50 Intratracheal (>100ug/kg ) Effects: Structural or functional changes in bronchi and trachea. There is inadequate evidence in humans for the carcinogenicity of titanium dioxide. Cancer in experimental animals: There is sufficient evidence in experimental animals for the carcinogenicity of titanium dioxide. Overall evaluation: Titanium dioxide is possibly carcinogenic to humans (Group 2B).
Active Ingredient/Synonyms
Titanium dioxide | Titanium dioxide |
Source of information: Drugbank (External Link). Last updated on: 3rd July 18. *Trade Name used in the content below may not be the same as the HSA-registered product.