The Use of Marijuana for Anxiety

As more states legalize marijuana, both for medicinal and recreational use, more and more people are turning to cannabis in hopes of managing anxiety or generalized anxiety disorder (GAD). Although scientific research in this area is still sparse, there are anecdotal and new scientific reports of marijuana creating a calming experience that temporarily relieves symptoms of anxiety for many people.

While the option may sound appealing, especially if you've struggled to successfully manage anxious feelings, there are considerations worth weighing. In particular, marijuana doesn't seem to be a helpful long-term solution.

Anytime you take it upon yourself to use a substance to treat or cope with a medical problem or symptom, it is referred to as self-medicating. Often, self-medicating produces an immediate relief of the uncomfortable symptoms, thereby reinforcing its use. The logic is simple: “Substance X makes me feel better when I’m anxious, so I will use it again as long as the risks and consequences are not too great.”

The problem with self-medication is that even though the use of marijuana is becoming more acceptable, not enough is known about the efficacy of the drug for particular medical conditions as well as its long-term consequences.

Fortunately, the scientific community has recently started examining the effect of cannabis on anxiety, and the verdict is that short-term benefits do exist.

Scientists at Washington State University published a study in the Journal of Affective Disorders that found that smoking cannabis can significantly reduce self-reported levels of depression, anxiety, and stress in the short term. However, repeated use doesn't seem to lead to any long-term reduction of symptoms and in some individuals may increase depression over time.

Marijuana can affect your body in many ways beyond just getting you high. The high feeling you may experience after smoking or ingesting marijuana is due to tetrahydrocannabinol (THC), the chemical compound that gives marijuana its psychoactive effects.

These effects do not come without risks, and long-term or frequent use has been associated with the following:

Psychological Dependence

The central problem with using marijuana as an anxiety coping tool is that it can create a psychological dependence on the substance.

Long-Term Memory Loss

Several studies have found that long-term marijuana use can cause memory loss. Memory impairment occurs because THC alters one of the areas of the brain, the hippocampus, responsible for memory formation. It also can have negative consequences on the brain’s motivation system.

Exacerbation of Symptoms

THC can raise your heart rate, which, if you have anxiety, may make you feel even more anxious. Using too much marijuana can also make you feel scared or paranoid.

In some cases, marijuana can also induce orthostatic hypotension, a sudden drop in blood pressure when standing, which can cause lightheadedness or feeling faint. Cannabis can also cause feelings of dizziness, nausea, confusion, and blurred vision, which can contribute to anxiety.

A rare consequence of frequent marijuana use, particularly with today’s more potent strains, is cannabis hyperemesis syndrome (CHS). This involves cyclical nausea and vomiting. This is paradoxical and can be difficult to diagnose, as marijuana has been used to decrease nausea and vomiting in cancer treatment. Sufferers sometimes find relief in hot baths and showers, but ultimately, abstinence from marijuana is necessary for long-term improvement. 

Higher Levels of Psychiatric Disorders

It is possible that people who use marijuana for an extended period of time have higher levels and symptoms of depression, despite any improvements they may have seen in this regard with short-term use. Some research has also shown that heavy use of marijuana in adolescence (particularly in teenage girls) can be a predictor of depression and anxiety later on in a person's life. Certain susceptible individuals are also at risk for the development of psychosis with the use of cannabis.

Increased Need

You can develop a tolerance to marijuana. This means that the more you use it, the more you will eventually need to get the same “high" as earlier experiences.

Remember that some level of anxiety is normal and even helpful when you are confronted with something that feels threatening to you. However, when feeling anxious becomes pervasive and difficult to control, it is time to seek professional help to discuss other forms of anxiety management.

Therapy

Proactive coping strategies, learned through counseling, support groups, as well as self-help books and educational websites, can create lasting change without the negative components of extended marijuana use.

Cognitive behavioral therapy (CBT) and other forms of therapy can help you determine the underlying cause of your anxiety and manage it more effectively. Work with your doctor to develop a treatment plan that is right for you.

Working with a psychotherapist to manage your anxiety will give you a better handle on your condition in the long run. 

Medication

The use of certain prescription medications such as the selective serotonin reuptake inhibitors (SSRIs) have been firmly established as safe and effective treatment for anxiety disorders. Prescription medication is also preferable to marijuana since the long-term risks have been better studied and are potentially less significant compared to long-term marijuana use. Some anti-anxiety medications are taken daily, while others are taken episodically during periods of extreme anxiety or a panic attack.

Cannabidiol (CBD) Oil

CBD oil, a marijuana extract that is often dispersed under the tongue with a dropper, doesn't contain THC, so it won't give you the same mind-altering effects as marijuana. There is some beginning evidence to suggest that CBD could be helpful in the treatment of anxiety and addiction, but more clinical trials and research are needed in this area.

A Word From Verywell

Symptoms of anxiety are treatable. Studies show that psychotherapy and medication are effective for most individuals, whereas the long-term effects of self-medicating with marijuana have yet to be clearly established. If you’ve recently started experimenting with marijuana use to treat your anxiety, be sure to tell your doctor.