Sonexa 6 Injection: Dexamethasone Sodium Phosphate can be given parenterally at doses of 0.5-20 mg daily either as a single (slow) intravenous or intramuscular injection or by intravenous infusion. Large intravenous doses should be administered slowly to reduce the risk of cardiovascular collapse. The total daily intake of Dexamethasone, even in acute conditions should not exceed 80 mg except in certain very special circumstances. Cerebral oedema: 10 mg initially by intravenous injection, then 4 mg by intramuscular injection every 6 hours is required for 2-10 days. Shock: By intravenous or intramuscular injection or infusion 2-6 mg/Kg, repeated if necessary after 2-6 hours. The dose in children varies from 0.03 to 0.09 mg per Kg body weight twice a day for adrenal suppression and between 0.01 mg per Kg body weight once a day for other indications. An alternate-day regimen reduces the risk of growth retardation.

Ocular herpes simplex is an example of absolute contraindication to corticosteroid therapy relative contraindications are: Gastro-intestinal ulcer, acute or chronic infections, osteoporosis, pregnancy, diabetes mellitus, renal insufficiency, hypertension, history of psychotic illness, immediate before prophylactic immunization and finally hypersensitivity to Dexamethasone.

Dexamethasone should be used with caution in the presence of congestive heart failure or hypertension, in patients with diabetes mellitus, epilepsy, glaucoma, infectious disease, chronic renal failure, and uremia and in elderly persons.

Hypersensitivity including anaphylaxis and allergic skin reactions have been reported. The incidence of predictable undesirable effects of glucocorticoids correlates with the dosage timing of administration and duration of treatment. Patients on prolonged Dexamethasone therapy are at risk of collapse and possibly death if their daily dose is not increased at times of severe physical stress e.g. injury, surgery or infections The somatic manifestations include growth retardation in children, osteoporosis and aseptic disturbances, and myopathy. Other cushing-like features, characteristic of glucocorticoid excess include truncal obesity, moon-face, oedema, delayed wound healing, glaucoma, and various psychiatric syndromes. These are all generally reversible with discontinuation of Dexamethasone treatment.

Dexamethasone exhibits interaction with phenytoin and phenobarbitone, ephedrine, rifampicin, magnesium trisilicate, salicylate, potassium-depleting diuretics (such as thiazide or frusemide), cardiac glycosides, NSAIDs, anticoagulants, antidiabetics, antihypertensives, barbiturates, carbamazepine, primidone, antimuscarinic agents.

Use in pregnancy: Safety for use during pregnancy has not been established. Infants born of mothers who have received substantial doses of corticosteroids during pregnancy should be carefully observed for signs of hyperthyroidism.
Use in lactation: Corticosteroid appears in breast milk and may suppress growth, interfere with endogenous corticosteroid production or cause other untoward effects, so patient should stop nursing if drug is prescribed.

Sonexa 6 Injection: Each box contains 10 ampoules in Alu-PVC blister pack.