49 • narrowing of the gullet (oesophagus – the tube that connects your mouth with your stomach), • blurred vision, pain or redness in the eye, • rash made worse by sunlight, • severe bone, muscle and/ or joint pain, • mouth ulcers when the tablets have been chewed or sucked, • transient flu-like symptoms, such as aching muscles, generally feeling unwell and sometimes with fever usually at the start of treatment.