Ketotifen is a chemical mainly recognized for its antihistaminic effects, nevertheless; it has caught the attention of some particular groups, notably those, who are using substances like Clenbuterol. Though it is essentially an antihistamine, its surprising feature of possibly modulating beta-2 receptor density has made it an item of debate in certain isolated fields.

Ketotifen is typically a medication in a tablet form for oral use. As an illustration, it is being referred to specifically as a 1mg tablet, usually packed in boxes of 30. The Bulgarian company Sopharma is often mentioned as a producer of Ketotifen, thus, the drug presence as a pharmaceutical product is being implied. It is reported that Ketotifen is marketed under different brand names, and Sopharma is only one of them.

Ketotifen is well-known for its healthcare function in various European countries such as the UK, France, Spain and Italy, and besides, there is some mention of interest in countries like Portugal, the Netherlands, and Sweden too.