55 Uncommon side effects • decrease in blood pressure • allergic-type reactions, including anaphylaxis (dizziness, severe drop in blood pressure, difficulty in breathing), angioedema (painful swelling of the face or throat), difficulty in breathing, low blood pressure, skin rash, nettle rash; these reactions can occur at the start of the treatment or throughout the treatment • worsening of rheumatoid arthritis or arthritic symptoms • blood or protein in the urine