Fenistil Drops is an oral antihistamine medication containing dimethindene maleate, used for treating allergic reactions and symptoms. The 20ml solution provides antipruritic, antihistaminic and antiallergic effects through oral administration. The active ingredient dimethindene maleate works by blocking histamine receptors to reduce allergic symptoms like itching, rashes, and hay fever. The drops format allows for easy dosing and is suitable for both adults and children (following proper dosage guidelines). As this is a medicinal product, it should only be used as directed by a healthcare professional and proper dosage instructions must be followed.