In the elliptical orbit, the center of mass of the orbiting-orbited system is at one focus of both orbits, with nothing present at the other focus. As a planet approaches periapsis, the planet will increase in speed, or velocity.
Drugs that cause hyponatremia include: 1  Diuretics: Thiazides, bumetanide, indapamide, ethacrynic acid, furosemide. 2  Antidepressants: Selective serotonin reuptake inhibitors, tricyclic antidepressants (amitriptyline, protriptyline, desipramine), monoamine oxidase inhibitors, venlafaxine.
Severe hyponatremia can cause seizures, coma and even death. Hyponatremia is more common in older adults because they're more likely to take medications or have medical conditions that put them at risk of the disorder. These risk factors include: 1  Drugs that make you urinate more (diuretics).