The bitter flavor causes your mouth to produce more saliva and thus, keep your throat moister. This will help especially if you have a dry cough, but does not always have the same effects as a lozenge with menthol or benzocaine. The effects of unmedicated lozenges can also be achieved by drinking large amounts of water. Young adults should avoid taking aspirin for cold symptoms. Aspirin, which contains salicylates, has been implicated in the development of Reye Syndrome, an uncommon, but serious complication of viral illnesses, such as colds, in children and young adults.
Side effects are rare if taken as directed.
Generic ibuprofen is fine. Do not use if allergic to aspirin. There are several different active ingredients that will relieve nasal congestion. Pseudoephedrine is one of the most common. It will NOT make you drowsy because it does not contain an antihistamine.