how long for methimazole to work?

[firefly7]

How long did it take you guys for it to kick in?   Almost three weeks ago here were my labs:
TSH                  [L]  <0.01 uIU/mL              [0.30-4.70]
Free T4                   1.89 ng/dL                  [0.75-2.00]
FT3                  [H]  5.5 pg/mL                   [2.3-4.2]  

I'm on 10mg of methimazole which I take as 5mg twice a day.   I had a slow start with it two weeks ago, taking only 5mg as I am notorious for my medication reactions but as I'm okay so far I'm gone up to 10mg for the last three days.   Still the minute my beta block leaves my system my resting heartrate zooms up to 100 or with caffeine even more.   I'm cutting out the caffeine altogether now - bums me out because chocolate is my comfort food.   My first visit with the endo isn't for a couple weeks yet.    Thanks in advance!

[ke235]

i have been taking methimazole for 14days, me & my husband are trying to have a child. Can someone please help us

[goolarra]

I don't know that jazzin is still active here.

Give it some time.  Four days is nothing when it comes to thyroid meds.  These meds don't work instantaneously, like antibiotics, etc.  Both meds you're on take a little getting used to.  When I first started atenolol, I felt a bit "slow" and it had quite an effect on my BP (lower BP might be why you're dizzy).  However, after a few weeks, my BP went back up a bit, and either I got used to that slow feeling, or it went away.

I wouldn't play with your dose until after you have follow up labs.  Getting reliable lab results depends on having taken medication consistently for the 4-6 weeks prior to the draw.  If you're not absolutely consistent, you have no idea where you're at.

Patience...

[mbp68]

I feel the same way was just diagnosed hyper end of July 2013 and feel like crap! Dr started me on 10mg methimazole twice a day and 1 atenolol per day. After 4 days still feeling drugged and a bit dizzy and my eyes still effected.  Any suggestions? I'm altering my diet to include less salt and more veges and living foods. I've been able to sleep but just having a real hard time in the a.m. - especially getting ready for work. I'm thinking of reducing my morning dose to half?

[goolarra]

If your doctor told you not to exercise, you should listen.

Have you had any follow up blood work since going on methimazole and propanolol?  If you're gaining weight, it could be because your methimazole dose is too high, and you are a little hypo.  Please post labs with reference ranges.

How do you feel?  Are your hyper symptoms under control?  Any new symptoms?

[thompang]

I don't know what to do! I've gained 10 pounds since the doc told me no more cardio after being diagnosed with hyperthyroidism. I used to hit the gym 3x a week and now I can't even run on the treadmill. I'm still ALWAYS hungry and now I need to find a way to shed the fat. Has anyone else had this problem? I keep hearing people say that they don't gain weight but I seem to be putting on pounds. I notice that I do lose weight rather quickly when I do work out. If I went against doc's orders I would probably shed this 10lbs in 1-2 weeks. So tempting! I'm currently on methimazole (1/2 a pill per day) and propranolol 10mgs 3x a day. The doc cut my methimazole because she said my white blood count was getting too low. Any suggestions about exercising?

[jazzin]

I am so glad to have found this forum and have someone else who knows what the symptoms are like. Thanks for giving me a ear to talk too. cause everybody around here just thinks I'm a head case.