Risperidone and Dexmethylphenidate Interaction
Drug interaction information between Risperidone and Dexmethylphenidate.
Risperidone and Dexmethylphenidate have a documented moderate interaction in FDA labeling.
FDA drug labeling documents a moderate-severity interaction between Risperidone and Dexmethylphenidate. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.
How They Interact
Taking these two drugs together can interfere with how your nerves control your muscles, especially when doses are changed. This can cause involuntary movements like shaking or muscle spasms.
FDA Label Information
Risperidone Clinical Impact Combined use of methylphenidate with risperidone when there is a change, whether an increase or decrease, in dosage of either or both medications, may increase the risk of extrapyramidal symptoms (EPS).
Risperidone Also Interacts With
- Amitriptyline major
- Carbamazepine major
- Lithium major
- Erythromycin major
- Ranitidine major
Dexmethylphenidate Also Interacts With
- Methylphenidate moderate
Frequently Asked Questions
What SPL severity band is on file for Risperidone + Dexmethylphenidate?
Compiled FDA labeling labels this pair moderate. That is a source-record field, not an individual medication-combination decision.
Which drug in this pair has the larger labeled-interaction portfolio?
Risperidone has 20 labeled pairs on file vs Dexmethylphenidate's 2. In the moderate band specifically: Risperidone has 5 (also Methylphenidate, Valproate, Digoxin, Tetrabenazine); Dexmethylphenidate has 2 (also Methylphenidate).
What mechanism field is on file for Risperidone and Dexmethylphenidate?
Taking these two drugs together can interfere with how your nerves control your muscles, especially when doses are changed. This can cause involuntary movements like shaking or muscle spasms.
Risperidone carries more major-labeled pairs than Dexmethylphenidate
SPL source-record counts only. This page's band is moderate · classes on file: Risperidone (Atypical Antipsychotic); Dexmethylphenidate (CNS Stimulant).
Risperidone has 6 major-labeled pairs vs Dexmethylphenidate's 0. This page itself is in the moderate band, not the major band.
6 major · 5 moderate · 9 minor · 20 total
- Other moderate peers for Risperidone
- Methylphenidate
- Valproate
- Digoxin
- Tetrabenazine
0 major · 2 moderate · 0 minor · 2 total
- Other moderate peers for Dexmethylphenidate
- Methylphenidate
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.
Read our methodology - how this data is sourced, computed, and verified.