The drugs that are used when there is a lack of natural chemical messenger is called __

Which of the following is not a preservative?

Which of the following tranquilizers cannot be part of sleeping pills?

Which of the following are neurologically inactive drugs?

Which of the following compounds does not inhibit the enzymes which catalyse the degradation of noradrenaline?

Which of the following drugs help in subsiding the effects of allergic reaction?

If the bond between the enzyme and inhibiting drug is very strong, which of the following takes place?

Dishwashing liquids are examples of __