Took 30mg of lotensin normally take 10mg am i ok?

Yes: You will be alright but it is important to be careful and make sure you are not too lightheaded or if you get up do it slowly as this can make your blood pressure drop. Otherwise you should do well but drink water and not be overactive. Check with your provider if there are any other symptoms or problems. I hope this helps. Be sure and take the dose that is prescribed.