Does Marijuana Dehydrate You?

Being dehydrated is often attributed to people who feel thirsty after consuming cannabis. However, it’s not necessarily a sign of dehydration to experience a dry mouth after consuming cannabis. 

Medical marijuana can treat several qualifying conditions. Although the legal restrictions on marijuana have limited the number of studies on it, people have found the drug to provide relief for several conditions. These conditions include anxiety, aches, PTSD, and a number of other mental and physical illnesses.

Cannabis, especially hemp, has become known for its medicinal properties, particularly its CBD content. Marijuana often confuses people because they wonder if it causes dehydration or not. Many people have reported feeling thirsty after smoking marijuana.

Most Common Side Effects of Marijuana

CBDCottonmouth is one of the more common adverse side effects people may experience when consuming marijuana. Most people have trouble dealing with a parched mouth after smoking cannabis. You end up feeling thirsty due to this.  However, dehydration is not the result of thirst. You become dehydrated when there is less fluid content in your body than you need. It can either happen due to consuming less fluid or a loss of fluid from your body.

The feeling of thirst that occurs after consuming marijuana is because of the THC content. The THC blocks the receptors in your mouth from producing saliva, causing your mouth to feel dry and making you feel thirsty.

While marijuana doesn’t precisely cause dehydration, it can also cause diarrhea as a side effect. Dehydration can result from excessive diarrhea. Furthermore, the diuretic property of marijuana can also cause dehydration. The diuretic property causes people to urinate multiple times a day, leading to dehydration if they do not consume enough water.

There have been cases of marijuana users becoming dehydrated due to their use. It is due to a relatively uncommon condition called cannabinoid hyperemesis syndrome. Patients with CHS often experience excessive vomiting and dehydration. It may be necessary to hospitalize you or receive IV drips.

Marijuana can cause electrolyte imbalances that cause death. Cases of CHS have increased dramatically since the 1990s. Unfortunately, there is little awareness of marijuana use, and many people believe that marijuana consumption will help CHS. 

Thus it is necessary to stay hydrated while consuming marijuana is necessary to obtain maximum benefits while reducing the side effects. 

Staying Hydrated Before and After Marijuana Use

Maintain hydration before and after consuming cannabis to avoid excessive dry mouth. Don’t panic if your mouth feels dry. Don’t chug massive glasses of water at the first sign of thirst. Instead, sip on water over a short period.

After consuming cannabis, make sure you stay hydrated with healthy fluids. Do not drink alcohol because it will only exacerbate your symptoms. Also, avoid soft drinks and only drink water and juices that are healthy. Hydration can help you keep healthy while also enjoying the benefits of marijuana.

Can You Feel the Effects Right Away?


It takes longer for marijuana to absorb into the body if consumed orally rather than smoked. You will feel the effects typically between 20 minutes and an hour and a half. However, absorption and rates of metabolism and excretion can influence drug concentrations.

There are a variety of ways marijuana can affect different individuals. The experience of euphoria and relaxation may cause some people to feel euphoric, whereas others may feel anxious and paranoid. Sometimes people report feeling “dopey” or that they cannot grasp concepts or lose interest in activities.

How Long Does Marijuana Last?

In terms of half-life, the body completely metabolizes and removes marijuana from the bloodstream after half of it has been absorbed. During the decomposition process, THC is converted to molecules called metabolites. The body’s endocannabinoid system may respond differently to 80 different metabolites of THC. The body eliminates then these metabolites gradually through feces and urine.

To almost wholly eliminate a substance requires five to six half-lives. You might see advice stating that drug tests won’t detect after five to eight days if you use it only once.

  • Blood and Saliva

Blood tests for marijuana are infrequent because marijuana stays in the blood for a short time. Accidents involving motor vehicles and some roadside sobriety checkpoints are the exceptions to this rule.

You can detect current intoxication by testing your blood or saliva. However, the tests do not indicate intoxication or impairment, like blood alcohol concentration tests.

  • Hair

A hair test detects up to three months after daily or near-daily marijuana usage, but it is not always detectable. Unfortunately, the hair test is not reliable for detecting infrequent marijuana use or determining how much marijuana has been consumed.

  • Urine

In addition, urine tests indicate marijuana use from only recent periods, not current intoxication or impairment. This is due to a delay between when you use the drug and when your body breaks it down into metabolites eliminated through the urine. In most workplaces, urine tests detect recent drug use since many employers have a zero-tolerance policy for drug use.

  • False Positive Testing

An immunoassay test called the EMIT or RIA can be used to test for marijuana in the workplace first. A positive result is followed by screening the sample with a gas chromatographic-mass spectrometer (GCMS), which is much more accurate and less likely to make false positives.

In the past, over-the-counter ibuprofen (Advil, Motrin, and Nuprin) caused marijuana tests to be false positives. However, these tests have been adjusted to eliminate false positives.

There have been instances where roadside blood tests have indicated false positives in places where marijuana is legal, especially in people who are not intoxicated at the time of the test but have been legally consuming marijuana. 


You don’t get dehydrated from marijuana. It merely causes your mouth to dry out, which leads to thirst. Marijuana does, on the other hand, often cause diarrhea. It can also cause vomiting, and it can also have diuretic properties. For this reason, drinking water both before and after the consumption of marijuana is essential.

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