Use of both Tenex and Ritalin

Patient: Can Tenex and Ritalin be used together? I heard it can cause an irregular heartbeat, but also that there is a benefit to taking the two drugs together when you have ADHD.

Doctor: Thank you for your question. Guanfacine (tenex) and methylphenidate (ritalin) if taken together can cause irregular rhyt hms of the heart which can cause dizziness, palpitations, and fainting. We recommend that you consult your doctor prior to taking these medications together. If you start experiencing any of these symptoms please see your doctor immediately.Thank you for choosing