Use a claw hammer to remove the nails. Insert the blade of a reciprocating saw behind boards as needed to cut off stubborn or broken nails that you can't remove with the hammer. Remove the remaining part of the nail with diagonal pliers. Grasp board B -- the weatherboard you're replacing -- with both hands.
Desmopressin, sold under the trade name DDAVP among others, is a medication used to treat diabetes insipidus, bedwetting, hemophilia A, von Willebrand disease, and high blood urea levels. In hemophilia A and von Willebrand disease, it should only be used for mild to moderate cases.
Depress suggests mainly the psychological effect, upon the individual, of unpleasant conditions, situations, etc., that sadden and discourage: depressed by the news. When oppress is sometimes used in this sense, it suggests a psychological attitude of more complete hopelessness: oppressed by a sense of failure.