Zip Code 23803 Population. 23803 is located in the state of Virginia in the Richmond metro area. Zip code 23803 is primarily located in Chesterfield County. Portions of 23803 are also located in Dinwiddie County.The official postal service name used for 23803 is PETERSBURG, Virginia.ip Code 23803 Area Codes. 23803 is located in the state of Virginia in the Richmond metro area. Zip code 23803 is primarily located in Chesterfield County. Portions of 23803 are also located in Dinwiddie County.
Cytomel (T3) is rarely prescribed on its own to address thyroid problems; it is usually prescribed with T4. In the past, cytomel was a scheduled treatment for obesity; however, an increase in heart complications and cardiac stress forced withdrawal of T3 for that application.
FREE T3: T3 is the active thyroid hormone. Free in front of the T3 means you are measuring what is available and unbound. Those on an optimal amount of desiccated thyroid, with no lingering hypothyroid symptoms and in the presence of healthy adrenals, tend to have a free T3 towards the upper part of the range. Dosing solely by the TSH and the total T4, or using the outdated Thyroid Panel. 2  Prescribing anti-depressants in lieu of evaluating and treating the free T3. 3  Telling thyroid patients that desiccated natural thyroid is unreliable, inconsistent, dangerous or outdated.