Aurum Metallicum is a homeopathic remedy for headache. Aurum Met. may also be used for sleeplessness due to depression, photophobia and other conditions. Symptoms include feeling of hopelessness; oversensitivity to noise. WORSE in cold weather when getting cold. Many complaints come on only in winter; from sunset to sunrise. Source: Boericke Materia Medica
You can find Aurum Metallicum Pills at Remedy Source.