The vaccine is given in 4 doses, each containing increasing amounts of
the ragweed pollen. The injections will be given by your health care professional
and should be started by the end of June, if possible. The injections are given
at 7-day intervals so that the last has been used by the beginning of August.
The injections should be kept in the refrigerator between 2 to 8°C until they are needed. The syringe that is going to be used should be allowed to come to room temperature before it is used.
After the injection, your doctor will ask you to wait in the office or clinic
for 20 to 30 minutes to ensure that you don't have an immediate allergic reaction
(rare). You should avoid strenuous exercise for at least 24 hours
after each injection.
You should not eat a heavy meal just before receiving the injection. Your doctor may want you to take an antihistamine about one hour before your appointment.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are
taking the medication without consulting your doctor.
It is important this medication be given exactly as recommended by your doctor. If you miss an appointment to receive this vaccine, contact your doctor as soon as possible to reschedule your appointment.
Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.