Kamagra 100 works by relaxing the patient's muscles that are present in the walls of a man's blood vessels. This action remains specific to a certain part of the male body and helps by increasing blood flow. So, whenever a person is s*xually stimulated, blood starts flowing into the man's p*nis resulting in a successful erection which is known to last longer. The main active component of Kamagra Chewable tablet is Sildenafil. This active ingredient is a phosphodiesterase type 5 inhibitor or PDE5 inhibitor. Kamagra does not allow PDE5 to destroy guanosine monophosphate - cGMP. cGMP causes rigid penile erections. Thus, it triggers and controls the relaxation and weakening of limb muscles. Kamagra 100 is an oral medication that is taken with a glass of water.