Parasites are an incredibly varied group of organisms that live within host cells. They are smaller than their host organism and reproduce faster by causing more damage to the host. They receive all sorts of benefits like food and shelter from the host. The botanical name for the amarbel is Cuscuta reflexa. This is also called giant dodder. Amarbel is commonly used in headache, labour-pain, bone fracture, fever and rheumatism treatment.