Syscolite
Syscolite Uses, Dosage, Side Effects, Food Interaction and all others data.
Extracted from the dried leaves of bearberry plant in the genus Arctostaphylos and other plants commonly in the Ericaceae family, arbutin is a beta-D-glucopyranoside of Hydroquinone. It is found in foods, over-the-counter drugs, and herbal dietary supplements . Most commonly, it is an active ingredient in skincare and cosmetic products as a skin-lightening agent for the prevention of melanin formation in various skin conditions that involve cutaneous hyperpigmentation or hyperactive melanocyte function . It has also been used as an anti-infective for the urinary system as well as a diuretic . Arbutin is available in both natural and synthetic forms; it can be synthesized from acetobromglucose and Hydroquinone . Arbutin is a competitive inhibitor of tyrosinase (E.C.1.14.18.1) in melanocytes , and the inhibition of melanin synthesis at non-toxic concentrations was observed in vitro. Arbutin was shown to be less cytotoxic to melanocytes in culture compared to Hydroquinone .
At non-toxic concentrations, arbutin inhibited the activity of tyrosinase in cultured human keratinocytes, while having minimal effect on the expression of tyrosinase mRNA or the synthesis of the enzyme . α-Arbutin produced a concentration-dependent inhibition of melanin synthesis of human melanoma cells, HMV-II . No inhibitory effect on HMV-II cell growth was seen at concentrations lower than 1.0 mM. At concentrations of 0.5 mM of arbutin, tyrosinase activity was reduced to 60% of that in non-treated cells . The addition of arbutin blocked and inhibited α-MSH-stimulated melanogenesis in B16 melanoma cells, brownish guinea pig, and human skin tissue . In a pilot study of healthy male adults exposed to UV B irradiation, topical administration of arbutin inhibited UV-induced nuclear factor-kappaB activation in human keratinocytes . In mouse skin, arbutin counteracted oxidative stress induced by 12-O-tetradecanoylphorbol-13-acetate .
Hydroquinone is a topical depigmentating agent that produces a reversible depigmentation of the skin by inhibiting enzymatic oxidation of tyrosine to 3,4-dihydroxyphenylalanine and suppressing melanocyte metabolic processes.
A normal intermediate in the fermentation (oxidation, metabolism) of sugar. The concentrated form is used internally to prevent gastrointestinal fermentation. (From Stedman, 26th ed) Sodium lactate is the sodium salt of lactic acid, and has a mild saline taste. It is produced by fermentation of a sugar source, such as corn or beets, and then, by neutralizing the resulting lactic acid to create a compound having the formula NaC3H5O3.
Lactic acid was one of active ingredients in Phexxi, a non-hormonal contraceptive agent that was approved by the FDA on May 2020.
Lactic acid produces a metabolic alkalinizing effect.
Licorice allergenic extract is used in allergenic testing.
| Trade Name | Syscolite |
| Generic | Kojic Acid Dipalmitate + Hydroquinone + Glycolic Acid + Arbutin + Lactic Acid + Licorice |
| Weight | 2% |
| Type | Cream |
| Therapeutic Class | |
| Manufacturer | Syscutis Healthcare Pvt Ltd |
| Available Country | India |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
Indicated for over-the-counter use for epidermal hyperpigmentation in various skin conditions, such as melasma, freckles, and senile lentigines.
Hydroquinone is used -
- For the gradual bleaching of hyperpigmented skin conditions such as chloasma, melasma, freckles, senile lentigines and other unwanted areas of melanin hyperpigmentation.
- To reduce hyperpigmentation caused by photosensitization associated with inflammation or with the use of certain cosmetics.
Lactic acid is an emollient and keratolytic used agent in various cosmetic products and used as an additive in various pharmaceutical products for its antibacterial properties.
For use as an alkalinizing agent.
Licorice is an extract from Licorice used in allergy testing.
Syscolite is also used to associated treatment for these conditions: Mild Lower Urinary Tract InfectionAcne, Pigmentation of the skinAcne Vulgaris, Melasma, Skin hyperpigmentation, Moderate Melasma, Severe MelasmaCorns, Dehydration, Fluid Loss, Hyperkeratosis, Lichenification, Shock, Hypovolemic, Vasoplegic Shock, Warts, Mild Metabolic acidosis, Mild, moderate Metabolic Acidosis, Moderate Metabolic acidosis, Chemical contraception, Electrolyte replacement, Fluid replacement therapy, Parenteral Nutrition, Peritoneal dialysis therapy, Urine alkalinization therapy
How Syscolite works
Arbutin is a hydroquinone glycoside, however the hydroquinone moiety is not solely responsible for the de-pigmentating actions of arbutin . It acts as a competitive inhibitor of tyrosinase enzyme by acting on the L-tyrosine binding site to suppress melanogenesis and mediate its de-pigmenting actions on human skin . Tyrosinase is an enzyme involved in the regulation of rate-limiting steps during the synthesis of melanin; it regulates the conversion of L-tyrosine into L-dopa, and subsequent conversion of L-dopa to L-dopaquinone . Via inhibition of tyrosinase activity in a concentration-dependent manner, arbutin attenuates the production of melanin in melanocytes. While most studies suggest that arbutin has negligible effect on the tyrosinase mRNA expression, a study assessing the effect of arbutin on melanocyte differentiation inducement system using ES cells propose that arbutin may also downregulate the expression of tyrosinase in addition to its inhibitory action on the enzyme . The contradictory findings across studies may be due to previous studies using terminally-differentiated melanocytes and melanoma cells .
Hydroquinone reduces melanin pigment production through inhibition of the tyrosinase enzyme, which is involved in the initial step of the melanin pigment biosynthesis pathway. Hydroquinone takes several months to take effect.
Lactate ions are metabolized ultimately to carbon dioxide and water, which requires the consumption of hydrogen cations.
Dosage
Syscolite dosage
Apply a thin film of Hydroquinone Cream to the effected area once daily, at least 30 minutes before bedtime. Gently wash the face and neck with a mild cleanser. Rinse and pat the skin dry. Apply Hydroquinone Cream to the hyperpigmented areas of melasma including about ½ inch of normal appearing skin surrounding eachlesion. Rub lightly and uniformly into the skin.
Therapy should be discontinued when control is achieved. During the day, use asunscreenof SPF 30, and wear protective clothing. Avoid sunlight exposure. Patients may use moisturizers and/or cosmetics during the day. Hydroquinone Cream is for topical use only. It is not for oral,ophthalmic, or intravaginal use.
Side Effects
No systemic adverse reactions have been reported. Occasional hypersensitivity (localized contact dermatitis) may occur in which case the medication should be discontinued.
Toxicity
In an acute oral toxicity study, the LD50-value for β-arbutin is 9804 mg/kg bw for the mouse and 8715 mg/kg bw for the rat . Dermal LD50 value in rat and mouse was reported to be greater than 928 mg/kg bw, according to an acute dermal toxicity study . Extremely high doses may cause ringing in the ears, shortness of breath, convulsions, collapse, vomiting and delirium . Nausea and vomiting were seen individuals with sensitive stomachs following oral ingestion of 15 g of dried uva ursi leaves that contain arbutin .
Precaution
Hydroquinone is a skin bleaching agent which may produce unwanted cosmetic effects if not used as directed. The physician should be familiar with the contents of this insert before prescribing or dispensing this medication.
Test for skin sensitivity before using by applying a small amount to an unbroken patch of skin to check in 24 hours. Minor redness is not a contraindication, but where there is itching or vesicle formation or excessive inflammatory response, further treatment is not advised. If no bleaching or lightening effect is noted after 2 months of treatment, the medication should be discontinued.
Contact with the eyes and lips should be avoided. Hydroquinone should not be applied to cut or abraded skin.
Volume of Distribution
No pharmacokinetic data available.
Elimination Route
Arbutin was found to be extensively absorbed from the gastrointestinal tract where it is primarily converted to hydroquinone .
Half Life
No pharmacokinetic data available.
Clearance
No pharmacokinetic data available.
Elimination Route
During the first 4 hours following ingestion of a single dose of 210 mg arbutin in healthy volunteers, 224.5 μmol/L hydroquinone glucuronide and 182 μmol/L of hydroquinone sulfate were recovered in the urine .
Pregnancy & Breastfeeding use
Pregnancy Category C. Either studies in animals have revealed adverse effects on the foetus (teratogenic or embryocidal or other) and there are no controlled studies in women or studies in women and animals are not available. Drugs should be given only if the potential benefit justifies the potential risk to the foetus.
Lactation: It is not known whether topical hydroquinone is absorbed or excreted in human milk. Caution is advised when topical hydroquinone is used by a nursing mother.
Contraindication
Hydroquinone is contraindicated to patients with prior history of hypersensitivity or allergic reaction to hydroquinone or other ingredients in the preparation.
Acute Overdose
There have been no systemic reactions from the use of topical hydroquinone. Some patients may experience a transient reddening of skin and mild burning sensation which does not preclude treatment.
Storage Condition
Store between 20-25° C. Protect from light.
Innovators Monograph
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