DRUG DELIVERY SYSTEMS

Now a days various drug delivery systems have been developed. These systems enabled to use more drug selectively at a particular target organ at relatively lower side effects. The various drug delivery systems are liposomes coated drug particles such as Amphoterecin B, various anticancer drugs, Ocusert for delivering drugs in the eye, monoclonal antibodies for a particular target organs, transdermal drug delivery systems for harmonal drugs such as contraceptives, testosterone etc. Liposomes are molecules which are lipophilic and cross blood brain barrier easily. So the drugs which have poor blood brain barrier penetration can be coated with liposomes and can be delivered easily without increasing the drug toxicity.