Isentress is an antiviral medicine that is used for the treatment of human immunodeficiency virus infection. The generic name of this medicine is Raltegravir and it strengthens the immune system and reduces the symptoms of the infection. Some of the symptoms of Isentress are - dizziness, itching, constipation, headache, and peripheral neuropathy. The Price of  Isentress 400mg is high and hence it is advisable to gather complete information about this medicine before buying its use.