Yes, you can use Lecigon (and other pumps) at night as well. But then you need to use a lower dose, otherwise there is a risk of side effects. You can use about 75% of the daytime pump flow at night – this can help with sleep. Discuss this with your neurologist. Vomiting and headaches sound troublesome and are not symptoms of Parkinson’s, so it’s a good idea to check that you aren’t ill in some other way. /Dag Nyholm