Ecopharmacology is a science dealing with effects of active pharmaceutical compounds and their metabolites on ecosystem in negative way. Pharmaceuticals find their way into environment either through excretion after human use, agriculture and veterinary use, through disposal of expired medicine and as manufacturing waste. Some pharmaceuticals are not easily biodegradable, persist in environment and their accumulation in environment pose risk to non targeted organisms, animals and may be humans. They are usually found in traces (nanograms to micrograms/litre) in drinking water; still they are...