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First of, I know of course that certain medication can cause an addiction if incorrectly used. But as far as I understand it, drugs prone to cause addiction have some agent in it, that makes them addictive.

What I am interested in is a bit different though: If a drug "helps your body" do something your body can not or only insufficiently do alone, does it get dependent on this drug, even if the drug does not have addictive substances in it?

Or in other words: Can the human body unlearn something because of the fact that medication helped it do it for some time?

Edit: To make the question a little more clear, I can give the following example: I recently received medication containing Etilefrine, which contracts my blood vessels and thus prevents me from fainting in certain situations. If I take this medication regularly for a year and the suddenly stop it, could it be possible, that my blood vessels "forgot" how to contract on their own?

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closed as too broad by AliceD, rg255, AMR, MattDMo, March Ho Jan 26 '16 at 10:38

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ Stopping drugs/alcohol "cold turkey" can be fatal - drug dependency is a common problem $\endgroup$ – rg255 Jan 25 '16 at 13:58
  • $\begingroup$ @rg255 I checked the Wikipedia article on it, along with the one on Drug withdrawal and it had some useful information in it. However, the articles tend to discuss drugs containing addictive substances. I would also be interested in drugs without those substances. $\endgroup$ – pat3d3r Jan 25 '16 at 14:15
  • $\begingroup$ You have now specified your question, but a different thing you might be interested in is steroid withdrawal and what can happen if corticosteroids are stopped abruptly. $\endgroup$ – YviDe Jan 25 '16 at 15:06
  • $\begingroup$ @YviDe I gave steroid withdrawal a look, it is a very interesting subject and roughly the thing I asked about. Thank you! $\endgroup$ – pat3d3r Jan 28 '16 at 22:05