Paracelsus, knows as father of toxicology wrote, “All things are poison, and nothing is without poison; only the dose permits something not to be poisonous.” Poisoning can be caused by Chemical toxicants, Biological toxicants and Physical toxicants. Poisoning can effect the entire organism, specific organs or cells. The routes through which poison enter the body … Continue reading
In many Material Safety Data Sheets we see LD50 , What is LD50 ? Definition of LD50 given in IMDG Code is “LD50 (median lethal dose) for acute oral toxicity is the statistically derived single dose of a substance that can be expected to cause death within 14 days in 50 per cent of young … Continue reading
Aerosol inhaler for asthma is a pressurized aerosol which when used will eject the medicine as aerosol into the lungs. The content inside asthma aerosol inhalers is propellant and the medicine. Typically the propellant is almost 99% of the content. CFC propellants are replaced by HFA (hydrofluoroalkane) propellants as CFC is an ozone depleting substance. … Continue reading