?i?u này x?y ra b?i vì k?t h?p v?i receptor mu opioid làm gi?m kh? n?ng truy?n tín Hello?u ?au t? các dây th?n kinh t?i não.Dry mouth Try chewing sugar-free gum or sucking sugar-free sweets. You are able to also purchase or a physician could prescribe a man-made saliva substitute to keep your mouth moist. This comes to be a spray, gel or loz