Curious About Meds

My son has learning disabilities coupled with bipolar disorder and parania... He lives in a group home with 6 others with similar behaviors.  My son is taking several meds a day to keep his chemistry as level as it can possibly be (although the meds don't always work).  I'm wondering if there are meds other than seroquel and lithum that can help.  His disabilities are severe, but he can function normally at times.  He's in a day habilitation program during the day and works periodically.  Because of his learning disabilities he is unable to read (he's 23 years old)  He's embarassed by this and I'm just wondering if there are other mom or dad with young adults with the same disabilities and what are you doing for them.
Thank you
Abby229