Other drugs may be recommended for some people with hay fever:
Ipratropium : Nasal atropine is effective for the treatment of severe runny nose. This drug, available as ipratropium bromide (Atrovent®), is not generally recommended for people with glaucoma or men with an enlarged prostate.
Leukotriene modifiers : Release of substances called leukotrienes may contribute to the symptoms of hay fever. Drugs that block the actions of leukotrienes, called leukotriene modifiers, can be very useful in patients with asthma and hay fever. However, nasal steroids are more effective than leukotriene modifiers for treating hay fever; thus, leukotriene modifiers are generally reserved for patients who cannot tolerate nasal sprays (due to nose bleeds) or azelastine (see 'antihistamines' above).
The main difference between the injection and the tablet form is that once you've had the injection, there's nothing that anyone can do to stop the steroids leaking into your blood stream. If you do suffer any side effects, these may last for up to three weeks. If you're taking tablets, stopping the treatment will usually cause the symptoms to cease within twenty-four hours. In a nutshell - the injection is faster and more convenient than the tablets, but if you're unlucky enough to suffer side effects, you'll be stuck with them for longer.