Theridion is a homeopathic remedy for lightheadedness, seasickness, sick headache, vomiting. Worse from noise; touch; pressure; closing eyes; least motion; exertion; jar; cold; washing clothes; sunstroke; on shipboard; riding in carriage; sex; left side; stooping; rising; going up or down stairs; walking. Better from rest in the horizontal position; warm water makes nausea and retching better. SOURCE: Robin Murphy Lotus Materia Medica
You can find Theridion Pills at Remedy Source.