How much cough syrup should you take to get high?

Reports state chugging about half a bottle (so, around 4oz), but they are inconsistent. Carefully recorded doses came up with the following table:

(note, this table gives the amount in mg of DXM to take per kg of your weight)

1st plateau (euphoria, increased interest in music and motion) 1.5-2.5mg/kg

2nd plateau (senses/ cognitive function affected, possible closed-eye hallucinations) 2.5-7.5mg/kg

3rd plateau (strong intoxications/ hallucinations, reported "getting lost in your own mind") 7.5-15mg/kg

4th plateau (separation of mind and body, vivid sensory hallucinations) 15+mg/kg

NOTE- 20mg/kg IS APPROACHING LETHAL DOSES, DO NOT TAKE THIS MUCH REGARDLESS OF WHAT OTHER REPORTS SAY!!!!

Instead of removing the previous answer, I want to point out the flaws within it, to hopefully shed the light of truth. First, DXM is very much a "real drug" with real effects. And if abused, the user will suffer from serious problems. This is NOT TO BE MESSED AROUND WITH.

Second, medical companies intentionally add other substances that cause sickness, injury, or death to the medicine, to prevent people from taking larger, recreational doses. Therefore, yes, stock DXM can be dangerous, but it is also from the other drugs.

DXM is a dissociative hallucinogen, so it will effect your senses, yes. That is part of the hallucinogenic experience. Regardless, BREATHING IS NOT A SENSE!! While sight, sound, smell, taste, and feel are controlled in the cerebrum, while breathing is controlled by the cerebellum, which is not effected in the same way. Although, breathing is effected by drugs, such as alcohol, opiates, amphetamines, etc.

Finally, hallucinogens, by definition, do not cause physical withdrawal symptoms. What the previous answer was describing is a physical addiction and withdrawal, neither of which DXM can cause. Sure, it can be psychologically addictive, but the brain can become dependent on any number of substances (drugs, sugar, caffeine, nicotine, etc). Do not be fooled into thinking this is such a lethal substance, although if abused it WILL CAUSE HARM!! I cannot stress this enough.

On a final note, as some food for thought, dextromethorphan (DXM) is produced in small quantities, naturally, by the human brain.

PREVIOUS ANSWER:

Probably 50 ml - 100 ml for DXM cough syrup. But i advice get real drugs eventhough it's illegal, it's not as life threatening than cough syrup. The reason why people die from cough syrup is because they don't know how to control and understand the ability of that monster. DXM syrup can cut off all your senses and you feel like you're in another dimension and your mind thinks it's alright if you don't breathe therefore if you follow, you will end up dying from suffocation.

And the consequences in withdrawing yourself from cough syrup sucks big time. Especially you go cold turkey. Food means nothing to you and all you think about is WHERE TO GET DXM! No joking matter