Body can be resistance of a drug, can you take a drug and abuse it, the body become tolerance of that particular drug. This simply means that, the body has become used to this particular drug, sometimes when a body become tolerance of a drug, the drug tend not to be effective people. People who are drug addicts started all this way. When you take a particular drug of offen and in high dose, the body might not be responding to treatment effectively, and you think increasing the dose of the drug will be the best way to go about it. Without knowing you I'm making your body to tolerate this drug.
We often say this in medications like painkillers and sedatives. This can also result to taking the medication on a higher dose which can cause the consumer to be dependent on this drug resulting the body to be the tolerating it consumption. When you feel a medication is not active it is better you visit a pharmacist or a doctor, then telling or being convinced within yourself that an increase in the dose of the medication will make it effective, or that continuous consumption we make it work better.
When you take a drug for an extended period of time, your body becomes tolerant to it. This is a high state of it, because you might not notice it at the first time or at the earlier stage of it. But when you get worst, it is always so difficult because the outcome might cause you that, all the brand drugs, of that particular generic drug, my end of not being effective as well. And in that situation, any Related drug that is given, it becomes ineffective against whatever you were using it to treat.
As a health practitioner, I have witnessed cases where an individual is a victim of drug tolerance. Major question we ask them is, Have you ever taken a drug that ended up being useless in combating your illness? When you see someone who is becoming drug tolerance, they most times have history of drug tolerance or drug abuse, drug addict, etc. One cannot just become drug tolerant without being reactive to the drug somehow, the reaction will be mild but it must have a sign, it might display some symptoms of drug addiction, but because the individual taking this medication or drug, taking it from home, are no close monitoring, which can lead to high consumption of this medication or drugs, an eventually the body become tolerant of it.
I have not been in a situation where I take more dose of drugs or where my body developed to become tolerance of a drug. Witness cases as a nurse where patients are tolerance of drugs, which most times as a result of drug addiction or can lead to drug addiction.
We also have to note that, when one's body is becoming drug tolerance, there's higher chances or possiblity that drug dependence or addiction might set in. Avoiding self medication, is also a way to prevent that from happening, and always visit a pharmacist or a physician, when ever medication and it's intake involved...