Desonide (INN) is a low-potency topical corticosteroid anti-inflammatory that has been available since the 1970s. It is primarily used to treat atopic dermatitis (eczema), seborrheic dermatitis, contact dermatitis and psoriasis in both adults and children. It has a fairly good safety profile and is available as a cream, ointment, lotion, and as a foam under the tradename Verdeso Foam. Other trade names for creams, lotions, and ointments include Tridesilon, DesOwen, Desonate. It is a group VI corticosteroid under US classification, the second least potent group. Medical uses
Desonide is a prescription topical treatment for redness, swelling, itching, and discomfort of various skin conditions. Regardless of the vehicle used, desonide is applied 2 to 3 times a day, at the same times each day. Skin conditions typically improve in the first two weeks of treatment. Patients are instructed to use desonide for the minimum amount of time necessary for conditions to improve. Adverse effects
The safety of desonide has not been determined beyond 4 weeks of use. Patients with allergies to corticosteroids (like hydrocortisone or prednisone) should use caution when taking desonide. Pharmacists and prescribing physicians should be aware that this medication may contain inactive ingredients than can cause allergic reactions. Desonide should not be used if there is an infection or open wound in the treatment area. Systemic absorption of topical corticosteroids can produce adverse effects. Indication of Cushings syndrome, hyperglycemia, and glycosuria have been observed in some patients receiving treatment. After stopping treatment, reversible hypothalamic-pituitary-adrenal (HPA) axis suppression with the potential for glucocorticosteroid insufficiency is possible.
Thyroid-stimulating hormone (also known as thyrotropin, thyrotropic hormone, or abbreviated TSH) is a pituitary hormone that stimulates the thyroid gland to produce thyroxine (T4), and then triiodothyronine (T3) which stimulates the metabolism of almost every tissue in the body. It is a glycoprotein hormone produced by thyrotrope cells in the anterior pituitary gland, which regulates the endocrine function of the thyroid. Physiology
Hormone levels
TSH (with a half-life of about an hour) stimulates the thyroid gland to secrete the hormone thyroxine (T4), which has only a slight effect on metabolism. T4 is converted to triiodothyronine (T3), which is the active hormone that stimulates metabolism. About 80% of this conversion is in the liver and other organs, and 20% in the thyroid itself.TSH is secreted throughout life but particularly reaches high levels during the periods of rapid growth and development, as well as in response to stress. The hypothalamus, in the base of the brain, produces thyrotropin-releasing hormone (TRH). TRH stimulates the anterior pituitary gland to produce TSH. Somatostatin is also produced by the hypothalamus, and has an opposite effect on the pituitary production of TSH, decreasing or inhibiting its release. The concentration of thyroid hormones (T3 and T4) in the blood regulates the pituitary release of TSH; when  T3 and T4 concentrations are low, the production of TSH is increased, and, conversely, when T3 and T4 concentrations are high,  TSH production is decreased. This is an example of a negative feedback loop.