--Etodolac: Gastrointestinal discomfort, nausea, vomiting, diarrhoea, constipation, rash, dizziness, headache, nervousness, tinnitus, depression, drowsiness, insomnia, blurred vision, photosensitivity, haematopoietic disorders, renal and hepatic damage, bronchospasm, Stevens-Johnson syndrome. Thiocolchicoside: Allergic reactions, drowsiness, nausea, headache, hypotension, photosensitivity.