Drug interaction is relatively common and can be caused by the combination of more than one drug and even these with food, with consequences that may be unpredictable. An example of this can be seen when you take an antihistamine medicine and a cold medicine together.
During a medical appointment, when the professional asks if you are taking any medications, remember each item. After all, your response may be responsible for the success or failure of treatment.
EXACERBATION of side effects. You get double the side effects of sleepiness, dullness, dry mouth and impaired judgement. It is better to take an antihistamine alone or a cold medication preparation, which contains this. Do not take both. Also, take it at bedtime, so that it would help by causing sleepiness.
