Homeopathy is regarded by most modern sciences as ineffective. The dilution levels in homepathic remedies are so high that the measurements can be insignificant. The issue is not that homeopathy produces no effect as much as when people believe they do. There are no deaths recorded that have issue to do with overdose of homeopathic remedies, but negligence to seek modern medical help has caused extreme illness and even death. If one were to try to overdose on such diluted contents, you would die of overeating long before any of the believed effective elements would be measured.
To take a look at this danger let's examine several cases of deaths due to ignorance caused by homeopathy.
"The parents of a 13-month-old girl who died after a series of seizures refused to treat their child with anti-convulsant medicine and instead opted for alternative therapies." This is a case from 2003 where the parents of an infant refused medical treatment.
President Warren G. Harding
"Despite the misgivings of a physician, his personal homeopath let him do arduous tasks and speak in the heat. When he had a bout of food poisoning, the homeopath applied heavy doses of purgatives to flush out toxins. He died. No autopsy was done."
33 Pakistani Breast Cancer Patients
"This study found that many breast cancer patients in Pakistan delayed medical treatment in favor of homeopathic remedies."
Lisa Weatherington and Over 300 Others
Now this is an interesting case as this shows an example of how a homeopathic remedy directly harmed people. Anosmia was associated with the use of this homepathic medicine and multiple lawsuits were filed.
"The makers of Zicam, a "homeopathic" cold remedy, settled 340 lawsuits by consumers who claimed it damaged or destroyed their sense of smell. The company did not admit guilt but paid out $12 million. "
This is a very short list of the examples of harm caused by ignorance due to homeopathic delusion. There are many more cases available and it is not difficult to find them.