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.
Physicians prescribe desmopressin most frequently for treatment of diabetes insipidus, bedwetting, or nocturia, thrombocytopathy. It is on the WHO Model List of Essential Medicines, the most important medications needed in a basic health system.