Pharmacy First has the following Promotion:-
£5.50 -Derbac-M liquid contains the active ingredient malathion, which is an organophosphorous insecticide that kills parasites such as head lice, pubic lice and scabies mites. Malathion works by blocking the action of an enzyme in the parasite called cholinesterase. This enzyme is essential for the growth and survival of the parasite.
Valid from 05/11/2019 14:06:00 to 31/12/2020 14:01:00 inclusive; please do not attempt to use outside of this period.
Terms Apply :-