I was simultaneously on two medications, both newer generation antipsychotics. One being Abilify (10mg) and the other being Amisulpiride (100mg). I eventually weaned off of Abilify as the side-effects were crippling and made me feel like a sleepless depravity but my psychiatrist mentioned that having two medications operating at once is not an issue unless they intertwine with an unstable interaction or cross-link between a specific neurotransmitter and somehow causes a fluctuation in its regularity.

Taking two or more antipsychotics concurrently is known as antipsychotic combination therapy as opposed to monotherapy which is not uncommon but not a practitioners first line of administrating medication. As long as your sense of wellbeing has not diminished, you don't experience too many adverse effects and the severity of symptoms don't exacerbate or persist then there should not be an issue.