pharmaceutically acceptable salt or compound thereof, pharmaceutical composition, methods for reducing the calcium conductance of a cellular capsaicin receptor, and for inhibiting the binding of vanilloid ligand to a capsaicin receptor, method for treating a condition responsive to receptor modulation. capsaicin, pain, itching, cough or hiccup and urinary incontinence or overactive bladder in a patient, methods to promote weight loss in an obese patient, to identify a capsaicin receptor binding agent, and to determine the presence or absence of capsaicin receptor in a sample, conditioned pharmaceutical preparation, and use of compound or salt