Constant monitoring of such drugs for allergy suffers without the strict steps laid out from the clinical trials methods, it will be almost impossible to take note of the side effects. Briefly, when you visit the doctor be it in a general practitioner (GP) clinic or in the Polyclinics, they will write a prescription which the patient then takes the prescription to any pharmacist. The pharmacist in her or his part will send the information to the Prescription Pricing Authority (PPS) which is private and confidential about the patient’s details or medicine. After a few months (3-12 months), there will be a “green form” questions being send to the general practitioner for them to fill up as they were the ones who prescribe the medicines. Generally, prescriber is asked to indicate how long the drug has been used and what is it for. All the data and prescription are usually done computerised through the system. During the treatment period for individual patients, it would be recorded down. Sedative reports of antihistamines are quite low. Antihistamines can be taken orally with food or after food together with milk or water to reduce the probability of stomach irritation. But if it is taken in the extended form, it is best advised not to crush, break and chew the pill. The dose form for Antihistamines can be different as the different ways of taking the drug such as Antihistamines can be taken not only orally. If the person taking the drug is advised to take different from the advised average dose, he or she should not change the dosage usage unless the doctor advise you to lessen down the dosage. The amount of the dosage depends on the strength of the drug. The different time intervals to take the drug such like after food or without food and within how many hours you can take the second dosage in a day on daily basis. It depends on what problem you are taking the medicine for as taking the drug for nothing might cause implications to the body. Although the time taken to absorb the drug or medicine depends on individual being. Too much intake of a drug could lead to an overdose. Antihistamine is only taken when an allergy is acting up or runny nose situation.
Antihistamines have more than two generations but the only generation that would cause the user to be drowsy would be the first-generation. The less drowsy ones would be the generations after the first-generation.