According to the Mayo Clinic, the signs of RLS include unpleasant sensations in the thighs, calves or feet, including cramping, tingling or crawling feelings. Itching, burning and electric-like sensations may develop in RLS patients.
RLS may be associated with low brain levels of dopamine, a chemical that helps control muscle movement. Restless legs syndrome is often inherited and can become more severe during pregnancy.
Doctors may prescribe Parkinson's disease medications,including ropinirole and pramipexole, to improve dopamine levels and reduce restless sensations in a patient's legs. Narcotics such as oxycodone and codeine also have been used to treat RLS patients.
According to the Mayo Clinic, dehydration symptoms include dry mouth, thirst and decreased urine output. Muscle weakness, dizziness and headaches can develop in dehydrated individuals.
Common causes of dehydration include drinking insufficient amounts of water and losing fluids through diarrhea or excessive sweating.
Oral rehydration solutions are a common way to replace lost fluids quickly. They are sold over the counter in many pharmacies.