That will probably not harm u - i am not a doc and don't know ur history - but 18 x 2 = 36 mg and that is a pretty low dose still!!!
My doc said that some adults can go to doses in the hundreds on concerta. I take 72 mg a day and personally don't have any negative side effects i am aware of. If u r a normal healthy adult and ur heart is good, u will be fine. You might even see that 36 mg is better on your symptoms!!!
If u have concerns, call ur doc. But don't get too worked up about it - you might give urself an anxiety attack if you are a worrying kind of person.
I accidently took two doses of my 18mg concerta this morning.
Will that harm me?
Thanks for your reply.
The only side effects I had was heart palps for a few hours and I didn't sleep much last night. Guess anything more than the 18mg dose is too much for me.
I did the exact same thing 2 weeks ago(from 18mg to 36mg), but at the request of my x-doctor.
Be careful when you are driving. Prepare for a harder burnout time in the evening. My mistake was I went out with some friends and got sick around 12:00 midnight.
my heart palps were really bad, bad headache, and feeling nausia, and my focus was actually really bad. I did not sleep that night. (I don't drink, smoke or do drugs so I know it was all due to doubling my Concerta dose!)
I am now realizing through my Cardiologist that I needed a beta blocker with that higher dose of concerta.
I am planning to try that(the Beta blocker) once I get back on the medication in a few days. My appointment with my new psych. doc is coming up.
ALso, everybody is different....this was just my personal experience.
mashtee200339064.4934490741This might seem like an odd suggestion. You might talk to the doctor(s) about using guanfacine instread of a beta blocker. It is a blood pressue med that is effective for some ADHD symptoms and can augment the stims (I would consider that a bonus ):
http://www.peacehealth.org/kbase/topic/detail/drug/hw164961/ detail.htm