In Phase I studies, the following symptoms were observed at an increased rate after single oral doses of 2,500 micrograms and one single dose of 5,000 micrograms (ten times the recommended dose): headache, gastrointestinal disorders, dizziness, palpitations, light-headedness, clamminess and arterial hypotension.
In case of overdose, it is recommended that the appropriate supportive medical care is provided. Since roflumilast is highly protein bound, hemodialysis is not likely to be an efficient method of its removal. It is not known whether roflumilast is dialysable by peritoneal dialysis.