• Arabic Name : Ushar, Ashur
• Bengali Name : Akand, Akone 
• Chinese Name : Niu jiao gua
• English Name : Swallow-wort, Calotropis, Milkweed, Mudar, Madar Tree
• French Name : arbre à soie, Mudar
• German Name : Kronenblume, Madar-Strauch
• Gujarati Name : Aakado, Akado, Akda, Myhara, Retoakah 
• Hindi Name : Akh, Ak, Madar, Safed Aak, Arkh
• Kannada Name : Ekk, Ekkdagid, Ekkegid, Arkagid 
• Kashmiri Name : Aeka 
• Latin name : Calotropis gigantea R.Br.
• Marathi Name : Ruvi, Aak 
• Persian Name : Zahar Nak, Kharaq, Zahook
• Punjabi Name : Ak 
• Sanskrit Name : Arka, Alarka, Surya Patra, Mandara, Ravi, Bhanu, Tapana
• Urdu Name : Aak, Madar 

Description: The dried root bark has abortifacient, alterative, anthelmintic, antiinflammatory, antispasmodic, bitter, depurative, digestive, emetic, expectorant, febrifuge, laxative, stomachic and tonic properties that relieves strangury, cures ulcers and acts as an expectorant. It is also used in enlargement of spleen, asthma and dysentery. Calotropin, extracted from the roots, has been found to be effective in fertility control as it inhibited the motility of sperms. Its leaves are used to relieve stomach pain and used in oedema and enlargement of the abdominal viscera. The flowers are anthelmintic, appetiser, astringent, bitter, digestive, stomachic and tonic, that cure piles, asthma, loss of appetite and wounds and are useful in cholera. 

Externally it is useful in rheumatism, paralysis and gout.