A question for any Pharmacists-Night Nurse

[tali1]

Night Nurse -active ingredients?
For Night Nurse medicine it is stated on NetDoctor
"Night nurse capsules and liquid contain three active ingredients, paracetamol, promethazine and dextromethorphan."
"There are currently no other medicines available in the UK that contain this combination of active ingredients" is there some sort of patent /restriction/monoploy for Night Nurse

[Lois]

paracetamol - for pain and fever
promethazine - antihistamine, can help dry up a cold but used mainly for sedating effect
dextromethorphan - cough supressant

There are plenty of medicines which contain paracetamol, antihistamine and cough supressant. No idea if it's just down to personal choice of the manufacturers or whether it's a patent though.

[Paul Dishman]

There's certainly a patent /copyright on the name, but not on that combination of medicines which is an expensive way of treating a cold.

[tali1]

Apparently Night Nurse is the best sleep aid - i wonder if it has insomniacs as main buyers rather than those suffering coughs/flus
Still a bit puzzling regarding ingridients

[Lois]

Is it that puzzling? There are lots of medicines which are the only ones to contain a certain mixture, more because there are lots of drugs for most ailments.