Hq Lite

Uses

Hydrocortisone is used for the use in the following conditions: Primary or secondary adrenocortical insufficiency, Acute adrenocortical insufficiency, Shock unresponsive to conventional therapy, Congenital adrenal hyperplasia, Hypercalcemia associated with cancer, Nonsuppurative thyroiditis, Rheumatic Disorders, Dermatologic Diseases (Allergic States, Severe seborrheic dermatitis, Severe psoriasis, Pemphigus, Severe erythema multiforme), Control of severe or incapacitating allergic conditions (Bronchial asthma, Contact dermatitis, Atopic dermatitis, Serum sickness, Seasonal or perennial allergic rhinitis, Drug hypersensitivity reactions, Urticarial transfusion reactions, Acute noninfectious laryngeal edema), Ophthalmic Diseases (Herpes zoster ophthalmicus, Iritis, iridocyclitis, Chorioretinitis, Diffuse posterior uveitis and choroiditis, Optic neuritis), Gastrointestinal Diseases, Fulminating or disseminated pulmonary tuberculosis when used concurrently with appropriate antituberculous chemotherapy, Loeffler's syndrome, Aspiration pneumonitis, Hematologic Disorders (Acquired, autoimmune hemolytic anemia, Idiopathic thrombocytopenic purpura in adults, Secondary thrombocytopenia, Erythroblastopenia), Neoplastic Diseases (Leukemias and lymphomas in adults, Acute leukemia of childhood), Edematous States, Acute exacerbations of multiple sclerosis

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.

• For the treatment of acne vulgaris in which comedones, papules and pustules predominate.
• For the treatment of hyperpigmentation, roughness and fine wrinkling of photodamaged skin due to chronic sun exposure.
• For the treatment of Acute promyelocytic leukaemia

Hq Lite is also used to associated treatment for these conditions: Acute Gouty Arthritis, Acute Otitis Externa, Adrenal Insufficiency, Allergic Rhinitis (AR), Allergic corneal marginal ulcers, Anal Fissures, Ankylosing Spondylitis (AS), Anterior Segment Inflammation, Aspiration Pneumonitis, Asthma, Atopic Dermatitis (AD), Berylliosis, Bullous dermatitis herpetiformis, Chorioretinitis, Choroiditis, Congenital Adrenal Hyperplasia (CAH), Congenital Hypoplastic Anemia, Corneal Inflammation, Crohn's Disease (CD), Dermatitis, Dermatitis exfoliative generalised, Dermatitis, Contact, Dermatomyositis, Dermatosis, Drug hypersensitivity reaction, Epicondylitis, Erythroblastopenia, Hemorrhoids, Herpes Labialis, Hypercalcemia of Malignancy, Idiopathic Thrombocytopenic Purpura, Infection of the Fenestration Cavity, Infection of the Mastoidectomy Cavity, Iridocyclitis, Iritis, Itching caused by Hemorrhoids, Itching of the Anus, Leukemia, Acute, Leukemias, Loeffler's syndrome, Lymphomas NEC, Malignant Lymphomas, Mycosis Fungoides (MF), Ophthalmia, Sympathetic, Optic Neuritis, Pain caused by Hemorrhoids, Pemphigus, Post-traumatic Osteoarthritis, Primary adrenocortical insufficiency, Proctitis, Proteinuria, Psoriatic Arthritis, Rectal inflammations NEC, Rheumatic heart disease, unspecified, Rheumatoid Arthritis, Rheumatoid Arthritis, Juvenile, Seasonal Allergic Conjunctivitis, Secondary adrenocortical insufficiency, Secondary thrombocytopenia, Serum Sickness, Severe Seborrheic Dermatitis, Skin Diseases, Stevens-Johnson Syndrome, Synovitis, Systemic Lupus Erythematosus (SLE), Trichinosis, Tuberculous Meningitis, Ulcerative Colitis, Acquired immune hemolytic anemia, Acute Bursitis, Acute Tenosynovitis, Acute rheumatic carditis, Cryptitis, Disseminated Pulmonary Tuberculosis, Fulminating Pulmonary Tuberculosis, Itching skin, Non-suppurative Thyroiditis, Severe Erythema multiforme, Severe Psoriasis, Subacute Bursitis, Superficial infection of the external auditory canal with inflammation, Symptomatic Sarcoidosis, Systemic Dermatomyositis, Varicella-zoster virus acute retinal necrosis, PalliativeAcne Vulgaris, Melasma, Skin hyperpigmentation, Moderate Melasma, Severe MelasmaAcne Vulgaris, Alopecia, Cornification and dystrophic skin disorders, FAB classification M3 Acute promyelocytic leukemia, Skin hyperpigmentation, Solar Lentigines, Facial fine wrinkling, Keratinization disorders of the feet, Keratinization disorders of the hand, Moderate Melasma, Mottled hyperpigmentation, Severe Melasma, Severe, recalcitrant Cystic acne, Tactile roughness of facial skin

How Hq Lite works

The short term effects of corticosteroids are decreased vasodilation and permeability of capillaries, as well as decreased leukocyte migration to sites of inflammation.[A187463] Corticosteroids binding to the glucocorticoid receptor mediates changes in gene expression that lead to multiple downstream effects over hours to days.[A187463]

Glucocorticoids inhibit neutrophil apoptosis and demargination; they inhibit phospholipase A2, which decreases the formation of arachidonic acid derivatives; they inhibit NF-Kappa B and other inflammatory transcription factors; they promote anti-inflammatory genes like interleukin-10.[A187463]

Lower doses of corticosteroids provide an anti-inflammatory effect, while higher doses are immunosuppressive.[A187463] High doses of glucocorticoids for an extended period bind to the mineralocorticoid receptor, raising sodium levels and decreasing potassium levels.[A187463]

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.

Tretinoin binds to alpha, beta, and gamma retinoic acid receptors (RARs). RAR-alpha and RAR-beta have been associated with the development of acute promyelocytic leukemia and squamous cell cancers, respectively. RAR-gamma is associated with retinoid effects on mucocutaneous tissues and bone. Although the exact mechanism of action of tretinoin is unknown, current evidence suggests that the effectiveness of tretinoin in acne is due primarily to its ability to modify abnormal follicular keratinization. Comedones form in follicles with an excess of keratinized epithelial cells. Tretinoin promotes detachment of cornified cells and the enhanced shedding of corneocytes from the follicle. By increasing the mitotic activity of follicular epithelia, tretinoin also increases the turnover rate of thin, loosely-adherent corneocytes. Through these actions, the comedo contents are extruded and the formation of the microcomedo, the precursor lesion of acne vulgaris, is reduced. Tretinoin is not a cytolytic agent but instead induces cytodifferentiation and decreased proliferation of APL cells in culture and in vivo. When Tretinoin is given systemically to APL patients, tretinoin treatment produces an initial maturation of the primitive promyelocytes derived from the leukemic clone, followed by a repopulation of the bone marrow and peripheral blood by normal, polyclonal hematopoietic cells in patients achieving complete remission (CR). The exact mechanism of action of tretinoin in APL is unknown.

Dosage

Hq Lite dosage

Tablet: The initial dosage of Hydrocortisone Tablets may vary from 20 mg to 240 mg of hydrocortisone per day depending on the specific disease entity being treated. In situations of less severity, lower doses will generally suffice, while in selected patients higher initial doses may be required. The initial dosage should be maintained or adjusted until a satisfactory response is noted. If after a reasonable period of time there is a lack of satisfactory clinical response, Hydrocortisone Tablets should be discontinued and the patient transferred to other appropriate therapy.

It should be emphasized that dosage requirements are variable and must be individualized on the basis of the disease under treatment and the response of the patients.After a favorable response is noted, the proper maintenance dosage should be determined by decreasing the initial drug dosage in small decrements at appropriate time intervals until the lowest dosage which will maintain an adequate clinical response. It should be kept in mind that constant monitoring is needed in regard to drug dosage. If, after long-term therapy the drug is to be stopped, it is recommended that it be withdrawn gradually, rather than abruptly.

Injection:

• Adult: By IM injection or slow IV injection or infusion. The initial dose of Hydrocortisone sterile powder is 100 mg to 500 mg, depending on the severity of the condition. This dose may be repeated at intervals of 2, 4 or 6 hours as indicated by the patient's response and clinical condition.
• Children: By slow IV injection, up to 1 year 25 mg, 1-5 years 50 mg, 6-12 years 100 mg.

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.

Tretinoin cream: Tretinoin cream should be applied sparingly to the whole affected area once or twice daily. The skin should be thoroughly cleaned and dried before application. Patient should be advised that 6 to 8 weeks of treatment may be required before a therapeutic effect is observed. Moisturisers and cosmetics may be used during treatment with Cosmotrin cream but should not be applied to the skin at the same time. Astringent toiletries should be avoided.

Tretinoin gel: Tretinoin gel should be applied once or twice a day, before retiring, to the skin where lesions appear, using enough to cover the entire affected area lightly. The frequency of application can be adjusted to obtain maximum clinical efficacy with minimal erythema and scaling.

If Tretinoin gel is applied excessively, no more rapid or better results will be obtained and marked redness, peeling or discomfort may occur. Should this occur accidentally or through over-enthusiastic use, application should be discontinued for few days.

Patience is needed in this treatment, since the therapeutic effects will not usually be observed until after 6-8 weeks of treatment. During the early weeks of treatment, an apparent exacerbation of inflammatory lesions may occur. This is due to the action of the medication on deep, previously unseen comedones and papules. Once the acne lesions have responded satisfactorily, it should be possible to maintain the improvement with less frequent applications.

Moisturizers and cosmetics may be used during treatment with Tretinoin gel but should not be applied to the skin at the same time. The skin should be thoroughly washed before application of Tretinoin gel. Astringent toiletries should be avoided.

Capsule: The recommended dose is 45 mg/m2/day administered as two evenly divided doses until complete remission is documented. Therapy should be discontinued 30 days after achievement of complete remission or after 90 days of treatment, whichever occurs first.

If after initiation of treatment of Tretinoin the presence of the translocation is not confirmed by cytogenetics and/or by polymerase chain reaction studies and the patient has not responded to Tretinoin, alternative therapy appropriate for acute myelogenous leukemia should be considered.

Side Effects

Hydrocortisone is generally well tolerated except in prolonged high doses. It may cause cardiac arrhythmia, esophageal candidiasis, menstrual irregularity, decreased carbohydrate & glucose tolerance, fluid retention, increased appetite, weight gain, euphoria, mood swings, depression, insomnia, acne etc.

No systemic adverse reactions have been reported. Occasional hypersensitivity (localized contact dermatitis) may occur in which case the medication should be discontinued.

True allergic contact dermatitis is rare but a primary irritant dermatitis, manifesting itself as irritation, erythema, peeling and sensation of warmth, is common. Slight stinging is common as a mild reaction in many people but usually settles with continuous use and/or reduction in the frequency of application of the drug.

Toxicity

Data regarding acute overdoses of glucocorticoids are rare. Chronic high doses of glucocorticoids can lead to the development of cataract, glaucoma, hypertension, water retention, hyperlipidemia, peptic ulcer, pancreatitis, myopathy, osteoporosis, mood changes, psychosis, dermal atrophy, allergy, acne, hypertrichosis, immune suppression, decreased resistance to infection, moon face, hyperglycemia, hypocalcemia, hypophosphatemia, metabolic acidosis, growth suppression, and secondary adrenal insufficiency. Overdose may be treated by adjusting the dose or stopping the corticosteroid as well as initiating symptomatic and supportive treatment.

Precaution

Hydrocortisone should be used with caution in patients with a history of peptic ulceration as it increases the incidence of peptic ulceration. This drug should be used with caution in patients with congestive heart failure, hypertension, glaucoma, diabetic mellitus and epilepsy.

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.

Interaction

Drug interaction of hydrocortisone has been reported with amphotericin B, potassium-depleting agents, macrolide antibiotics, warfarin, antidiabetics, isoniazid, digitalis glycosides, estrogens, barbiturates, phenytoin, carbamazepine, ketoconazole, aspirin etc.

Particular caution should be exercised in using preparations containing peeling agents (i.e. sulfur, resorcinol, benzoyl peroxide or salicylic acid). Use of topical preparations with high concentrations of alcohol, menthol, spices or lime- such as shaving lotions, astringents and perfume- should be avoided, especially during initial therapy.

Volume of Distribution

Total hydrocortisone has a volume of distribution of 39.82L, while the free fraction has a volume of distribution of 474.38L.

Elimination Route

Oral hydrocortisone at a dose of 0.2-0.3mg/kg/day reached a mean C_max of 32.69nmol/L with a mean AUC of 90.63h*nmol/L A 0.4-0.6mg/kg/day dose reached a mean C_max of 70.81nmol/L with a mean AUC of 199.11h*nmol/L. However, the pharmacokinetics of hydrocortisone can vary by 10 times from patient to patient.

Topical hydrocortisone cream is 4-19% bioavailable[8546995] with a T_max of 24h.

Hydrocortisone retention enemas are have a bioavailability of 0.810 for slow absorbers and 0.502 in rapid absorbers. Slow absorbers take up hydrocortisone at a rate of 0.361±0.255/h while fast absorbers take up hydrocortisone at a rate of 1.05±0.255/h.

A 20mg IV dose of hydrocortisone has an AUC of 1163±277ng*h/mL.

1-31% (topical)

Half Life

Total hydrocortisone via the oral route has a half life of 2.15h while the free fraction has a half life of 1.39h. A 20mg IV dose of hydrocortisone has a terminal half life of 1.9±0.4h.

0.5-2 hours

Clearance

Total hydrocortisone by the oral route has a mean clearance of 12.85L/h, while the free fraction has a mean clearance of 235.78L/h. A 20mg IV dose of hydrocortisone has a clearance of 18.2±4.2L/h.

Elimination Route

Corticosteroids are eliminated predominantly in the urine.[A187436] However, data regarding the exact proportion is not readily available.

Pregnancy & Breastfeeding use

Pregnancy category C. Corticosteroids should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

Use in nursing mother: Systemically administered corticosteroids appear in human milk and could suppress growth, interfere with endogenous corticosteroid production, or cause other untoward effects. Because of the potential for serious adverse reactions in nursing infants from corticosteroids, a decision should be made whether to continue nursing or discontinue the drug, taking into account the importance of the drug to the mother.

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.

Tretinoin is contraindicated in pregnancy or suspected pregnancy. The drug should be avoided by breast feeding mothers.

Contraindication

Hydrocortisone is contraindicated in severe systemic fungal infections and patients with known hypersensitivity to any component of this product.

Hydroquinone is contraindicated to patients with prior history of hypersensitivity or allergic reaction to hydroquinone or other ingredients in the preparation.

Tretinoin is contraindicated in patients who are allergic to this drug. It is contraindicated in pregnancy or suspected pregnancy. It is also contraindicated in personal or familial history of cutaneous epithelioma.

Local irritation: The presence of cutaneous irritative signs (e.g. erythema, peeling, pruritus, sunburn, etc.) should prohibit initiation or recommencement of treatment with Tretinoin until the symptoms resolve. Tretinoin has been reported to cause severe irritation on eczematous skin and should be used with caution in patients with this condition.

Exposure to sunlight: Exposure to sunlight, including ultraviolet sun-lamps, should be avoided or minimised during the use of Tretinoin.

General precaution: Before application of Tretinoin, areas to be treated should be cleansed thoroughly. Abstain from washing the treated area frequently; twice daily is sufficient. Use of mild soap is recommended. Dry the skin without rubbing.

Avoid contact with eyes, eyelids, nostrils, mouth and mucous membranes. If contact in these areas occurs, careful washing with water is recommended.

Special Warning

Use in elderly patients: Clinical studies were not done in patients’ aged 65 and above. In general dose selection for an elderly patients should be cautious, usually starting at the low end of the dosing range.

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 at 15-30°C.

Store between 20-25° C. Protect from light.

Store in a cool and dry place, away from light. Keep out of reach of children.

Innovators Monograph

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