Emphysema worsened by Prostate Cancer Drug?

This deals with emphysema and a drug I take for prostate cancer and I'llmake this as short as possible.

Diagnosed with advanced PC in August 2004. No symptoms at the time but biopsy confimed it was there. Bone scans, etc. were negative. Treatment was Casodex with eight weeks of radiation beginning in July 2005 then Eligard injection every four months. So far all is well in the prostate area and PSA has been less than one for the past year.

My question is has anyone experienced or heard of Eligard causing shortness of breath. I was a long time smoker but stopped six years ago. Despite the emphysema, I was able to function "normally" with my condition - no oxygwn, Combivent inhaler only. Breathing problem seems to have worsened since I started on Eligard. Cat scans, xrays and PFTs from July 2004, January 2005 and November 2005 show no change in my lung condition and my pulmonary MD cannot see any reason for the shortness of breath.

A Google search for Eligard side effects did turn up a few sites which listed shortness of breath as a rare side effect. Could it be that this side effect is not so rare in people with emphysema and is there an alternative to Elgard?
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