Types of Bronchitis. Acute infectious bronchitis commonly accompanies or follows a URI; it develops over a couple of days, produces symptoms for 3 to 7 days, and resolves to a cough before normal respiratory function is recovered. Acute irritative bronchitis is triggered by allergies and chemical and other types of environmental irritants.
Reserve propylthiouracil use for those unable to tolerate other treatments (eg, methimazole, radioactive iodine, surgery) Propylthiouracil may be the treatment of choice during and just before the first trimester of pregnancy (strong association of methimazole with congenital malformation during first trimester)
Propylthiouracil should be used with caution in: liver disease; kidney disease; pregnancy; breastfeeding. It should not be used in: People with an allergy to propylthiouracil or to any other ingredients in the medicine; People with a rare hereditary condition which affects the way their body handles some sugars. Also see list of precautions and interactions