Relax ... this 100% natural, homeopathic remedy reduces phlegm and thick mucus, offering relief from throat congestion and that annoying need to clear your throat! No harmful side effects to worry about; congestion-fighting, herbal salts kali mur, kali sulph, and kali bich work to encourage respiratory health. Manufactured in an FDA-registered, GMP-certified facility. Simply take five drops in water three to five times daily. 2 fl. oz. is a 30- to 45-day supply.