Kamagra 100mg contains sildenafil. It is commonly known as a blue pill. Men use it to find a remedy for erectile dysfunction. It occurs when a man is unable to obtain or maintain a sufficient erection for sexual activity. It is a physiological and psychological disorder. It can lead to stress, problems in relationships, and low self-esteem. The primary symptom is an inability to obtain or maintain a satisfactory erection for sexual activity. Patients with erectile dysfunction should first check for any physical or mental conditions that could cause it.