Is it allowed or accepted in Islam for people to use Viagra or other kinds of drugs to enhance their sexual pleasure?

Question

A Muslim has to strike an equitable balance between his psychological and spiritual needs. The use of Viagra and other similar drugs, which usually enhance sexual performance, are to be done under the supervision of a trustworthy doctor who is specialized in this field. Also, the main purpose behind taking such drugs is to treat sexual dysfunction, and not merely for the mere obsession of sex. However, since sexual fulfillment is considered a legitimate human need, according to Islam, it is considered permissible for a person to make use of drugs as long as ingredients are Halaal that are considered safe – if he is suffering from sexual dysfunction. But, if there is no issue of sexual dysfunction, then it is not recommended for anyone to use such drugs to enhance sexual pleasure.