You can look up these and other drugs, and information on thyroid tests and diseases, at MEDLINEplus. As with any chemical, you can overdose. Symptoms of thyroid overdose can include diarrhea, irregular heartbeat, headache, tremors, nervousness, stomach cramps, fever, chest pain, or difficulty sleeping. If you suspect an overdose, contact your local poison control center or emergency room immediately. There are two ways to overdose.
New River, despite its name, is part of the oldest river system in North America. Two streams flowing from the Blue Ridge Mountains in North Carolina join to form the river, which flows through rugged backcountry gorges. Large populations of muskie, catfish, black crappie, perch, bluegill, sunfish and bass provide anglers with plentiful catches in New River State Park.
For more on the Savannah River, see the New Georgia Encyclopedia. The Savannah River orginates in Hart County at the confluence of the Tugaloo River and Seneca River (Seneca is in South Carolina). This confluence also forms Lake Hartwell. From Lake Hartwell the Savannah River flows southward for over 300 miles, forming the Georgia/South Carolina border. It empties into the Atlantic Ocean near the city of Savannah. Along with the Tugaloo River, the Broad River is also a tributary of the Savannah.