Harmful. Anything, even plant-based, is addictive. The body gets used to outside help. It is better to be able to somehow distract yourself, try to find something to do that will be pleasant and, at the same time, useful. It is good to do something with your hands, such as sewing, sculpting or knitting. Monotonous actions include inhibition processes in the cerebral cortex, as doctors say.
Any drug is harmful to take constantly. Firstly, because one way or another it is definitely not good for the stomach, liver and kidneys, and secondly, the body may even get used to certain types of medicines.
If you drink the drug as prescribed by a doctor and, if necessary, without an alternative to another treatment or without an opportunity, then although it is harmful, but the therapeutic effect is important and necessary.
However, if you yourself prescribed and drink for a month or two, a year or two, you can harm your body. No matter how harmless this activity may seem. All the same, more information could be given if the drug (s) itself were indicated. The sedative is in the form of herbs, tinctures, and sometimes in the form of tablets. And most importantly, there are different active ingredients. Each has its own side effects and contraindications for long-term use.