Can amantadine cause obsessive compulsive behaviour?

Yes!: One of the established and common side effects of amantadine is compulsive behaviors but not ocd.

Not typically: Amantadine is used to treat parkinsons and infections. It can increase anxiety but there is no established or direct link to obsessive compuslive disorder per the literature. Please refer to this: http://www.Ncbi.Nlm.Nih.Gov/pubmedhealth/pmh0000564/.

Not likely : A direct link between amantadine and the development of obsessive compulsive (OCD) behavior specifically has not been reported. However, amantadine may be associated with other psychological effects that may complicate or trigger existing or underlying OCD like depression and anxiety to name a few.