Sedating and non sedating antihistamines 50 dating manitoba winnipeg

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After three, six, or 12 months, “green form” questionnaires are sent to the general practitioners who wrote the original prescriptions.

The demographics of each cohort were roughly similar.These studies correlated prescriptions issued in general practice with events reported by the patients to their general practitioners after the drug was dispensed.By monitoring these events in a substantial population of allergy sufferers, without the restrictions imposed by clinical trials methodology, it was possible to measure differences in side effects between these drugs.As all events are monitored, the technique can pick up trends in events that might not be considered to be related to the drug by doctors seeing individual patients.Additional information, such as use during pregnancy, can be monitored, and data on the use of certain drugs during the first trimester of pregnancy have been published.7 A disadvantage of the method is that it relies on general practitioners returning completed green forms.

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