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.
Vitamin B3 could help reduce skin cancer risk. A new study could change the way doctors treat patients at high risk for skin cancer. It doesn't involve any high-priced new pharmaceuticals -- the key may be an over-the-counter vitamin supplement that costs less than $10 a month. Researchers found that a form of vitamin B3 called nicotinamide could help reduce the chance of skin cancer recurring in patients who've had it before. (Another popular form of Vitamin B3 called niacin was not used in this study.)