Compositions and methods for treating disorders ameliorated by muscarinic receptor activation

1. A method of treating a disorder ameliorated by activating muscarinic receptors in a patient in need thereof, the method comprising administering between 100 mg and 125 mg xanomeline and/or a salt thereof and between 20 mg and 30 mg trospium salt to the patient twice daily;

wherein the xanomeline and/or a salt thereof and trospium salt are administered as a pharmaceutical composition comprising a plurality of xanomeline beads having a core comprising the xanomeline or a salt thereof and optionally a coating, and a plurality of trospium beads having a core comprising the trospium salt and optionally a coating; and

wherein the pharmaceutical composition is a capsule containing the plurality of xanomeline beads and the plurality of trospium beads.

2. The method of claim 1 , wherein the disorder is chosen from schizophrenia, Alzheimer's disease, Parkinson's disease, depression, movement disorders, pain, drug addiction, tauopathy, and synucleinopathy.

3. The method of claim 1 , wherein the disorder is schizophrenia.

4. The method of claim 1 , wherein the administration is oral.

5. The method of claim 1 , wherein the patient is treated for at least 7 days.

6. The method of claim 1 , wherein the xanomeline and/or a salt thereof is xanomeline tartrate.

7. The method of claim 1 , wherein the trospium salt is trospium chloride.

8. The method of claim 1 , wherein the xanomeline and/or a salt thereof is xanomeline tartrate and the trospium salt is trospium chloride.

9. A method of treating schizophrenia in a patient in need thereof, the method comprising orally administering between 100 mg and 125 mg xanomeline tartrate and between 20 mg and 30 mg trospium chloride to the patient twice daily;

wherein the xanomeline and/or a salt thereof and trospium salt are administered as a pharmaceutical composition comprising a plurality of xanomeline beads having a core comprising the xanomeline or a salt thereof and optionally a coating, and a plurality of trospium beads having a core comprising the trospium salt and optionally a coating.

10. The method of claim 9 , wherein the patient is treated for at least 7 days.

11. The method of claim 1 , wherein the size of the xanomeline beads is between 0.425 mm and 1.18 mm.

12. The method of claim 11 , wherein the size of the xanomeline beads is between 0.6 mm and 0.85 mm.

13. The method of claim 1 , wherein the size of the trospium beads is between 0.425 mm and 1.18 mm.

14. The method of claim 13 , wherein the size of the trospium beads is between 0.6 mm and 0.85 mm.

15. The method of claim 9 , wherein the size of the xanomeline beads is between 0.425 mm and 1.18 mm.

16. The method of claim 15 , wherein the size of the xanomeline beads is between 0.6 mm and 0.85 mm.

17. The method of claim 9 , wherein the size of the trospium beads is between 0.425 mm and 1.18 mm.

18. The method of claim 17 , wherein the size of the trospium beads is between 0.6 mm and 0.85 mm.