Effects of Marijuana on Blood Pressure and Hypertension

The effect of marijuana on high blood pressure is a frequently asked question. People need to know that marijuana can assist in lowering blood pressure. There is some evidence that suggests that the use of marijuana can help reduce high blood pressure.

Effects of Marijuana on Blood Pressure
Short-term Effects Long-term effects
  1. Increased blood pressure
  2. An increased heart-rate
  3. Possible orthostatic intolerance (dizziness on standing)
  • Decreased blood pressure
  • Relaxation

Figure 1.

Is Marijuana Good For High Blood Pressure?

Clinical research on the effectiveness of marijuana in treating high blood pressure is still in its infancy. We know that in the short term, the use of marijuana brings about a slight rise in blood pressure and heart rate. It is similar to the effect of exercise on the heart.
The use of bud, hash and other forms of marijuana brings about an increased risk of developing cardiac events in the hour after use. However, the overall risk from using marijuana is still low. It is due to the stimulating effect of THC on the heart and cardiovascular system.

Smoking cannabis may raise the risk of having a heart attack by 4.8 times in the first hour of use. The use of cannabis has been associated with the development of cannabis arteritis. However, very few cases have been reported, so it is still unclear.
However, people who suffer from arthritis or Bueger’s disease should regularly have their blood pressure checked when using medicinal cannabis if they smoke cigarettes.

People (with no chronic conditions) also experience a higher risk of a heart attack after exercise with the rise in blood pressure and heart rate. This means that someone who is in great health may also experience a heart attack after a marathon. This also applies to sexual activity. Your heart rate will stabilize after a few minutes after the activity.
The time it takes to slow down depends on pre-existing cardiovascular conditions. People who have pre-existing conditions may be more at risk of having a heart attack after using marijuana. According to a study undertaken by Harvard Medical School, the risk increases 5 times after smoking marijuana and it takes longer for the heart rate to return to normal. This risk may remain high if the use of cannabis continues. Greater tolerance may develop as a result.

This reported risk relies upon animal studies, case reports, and other meta-analyses that cover a variety of variables. The studies that do exist found that there is no long-term association between the use of cannabis and heart attacks. If you are concerned about any adverse effects on your blood pressure, please consult your doctor about the use of cannabis if you have high blood pressure or any other cardiovascular disease.

Figure 2.

Does the Use of Weed Lower Your Blood Pressure?

The initial increase in blood pressure is rarely dangerous, especially for users with a high-risk factor, which leads to a decrease in blood pressure. Continued use of the drug will lead to greater tolerance and a slow decrease in blood pressure. This lowering of blood pressure can be experienced as dizziness after smoking marijuana.
Some studies report that if marijuana is used when standing up, the increase of blood pressure may be lower than expected with only a drop in blood pressure. Anandamide, released by the body, helps to reduce arterial pressure by relaxing blood vessels.
However, the discussion is quite complex. There are some components of cannabis (CBD and anandamide) that help to lower blood pressure; other parts of the plant will have different effects on your blood pressure.
Different strains of cannabis may have different effects on blood pressure. Sativa strains are more stimulating and may lead to a rise in blood pressure. Indica strains are more relaxing and help to reduce blood pressure. If you are worried, make sure that you get your heart rate monitored while using marijuana. Everyone will react differently to each strain of marijuana.

Figure 3.

Can you use Medical Marijuana to treat your high blood pressure?

It has been shown that smoking marijuana helps to lower blood pressure, similar to exercising. After exercising, there is an immediate rise in blood pressure with a low risk of cardiac arrest. After this initial period, there is a drop in blood pressure and a general reduction in blood pressure with exercise. Cannabis seems to work similarly.
There is a lack of research in this area, so it is still important to keep monitoring your blood pressure to see how smoking marijuana affects your body; There are different strains of marijuana that have different effects on your blood pressure.


The effect of marijuana on blood pressure needs to be further investigated. After using marijuana, there may be a slight increase in blood pressure and heart rate. It is during this time that there is an increased risk in developing a heart attack. After this, blood pressure may return to normal.
The best thing to do is to monitor (and record) your blood pressure before and after the consumption of marijuana. It is worth looking into how different strains of marijuana help to lower your blood pressure.

This article about Medical Marijuana was published on and updated on August 19, 2021 . Medical facts in this article was checked and article was medically reviewed by our . Author of this checked article is
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Leave a Reply

Ari said:

Aaahahahahhahahahahahahhaaaaaaa! Let me be the first to comment & call bullshit! Yeah ooookaaay, so if this is fact hen why aren’t there millions of people having heartattacks due to marijuana use because I can promise you even the people you DONT think smoke, indeed smoke. Get out of here with your lies and propaganda that holds no actual weight in fact. The medical industry just doesn’t want to lose out on all that $$ lmao I know people who have healed themselves using marijuana…. why is there no recorded death connected to it? Hmm? Not a single one, no overdoses and certainly no heartattacks!

Kohde said:

Ari, the author of this article isn’t bashing marijuana. In fact, the author is making a positive comparison by comparing marijuana to exercise and sex. All of said activities initially increase bp but lower bp long term. Which is a good thing for the human body so long as the person performing these activities is in good overall health.

bret said:

Yep I was about to say the same thing. I’ve been smoking for 3 years daily now. My brother’s about 20 years. None of us have ever heard of such thing. Also none of us ever EVER had a problem with anything mentioned in this article.

Jim Bo said:

I’ve been smoking for close to 35 years. Let me say that marijuana does have negative effects, especially at the levels being consumed today. With high availability, increased quality, edibles and concentrates people are consuming much much more than has ever been consumed.

Do not be surprised if as you age you might start to develop increased side effects … dizziness, paranoia, panic attacks, low blood pressure (to the point of passing out).

I have learned that I need to “dry out” every now and then and have seen research on how marijuana effects the brain.

The truth is unfortunately there are very limited studies on the effects of marijuana. Sure safer than most drugs but do not be fooled … it is not the cure all drug that we made it to be. That only happened as a work around to the prohibition. I hope legalization brings legitimate studies.

Lastly how sad that so many people distrust science and medicine. In the past this wasn’t the case. Now everyone is anti knowledge and that is sad sad sad

dean day said:

Several times, after having a few drinks and smoking a hit or two of pot, about 10 minutes later my blood pressure plummets. Last time I recorded 54/36, with pulse at 45 and irregular pulse. It takes 10 minutes to recover. I have passed out from this.

Johnny Cabot said:

do not use cannabis if you suffer from high blood pressure.there millions of people having heartattacks due to marijuana

Pete said:

@ Ari and that idiot bret : Extremely foolish reply. This isn’t 1997 and the war on drugs. This is about dealing with blood pressure in a world where marijuana is increasingly legal, and how to deal with that/what to expect. Are you fuckers retarded? Do you not think that something that impacts your cannabinoids and catecholamine system won’t impact your fluid pressures? You do realize you’re a giant hormone filled meat sack filled with fluids, right? What you eat, drink, and smoke impacts those physical systems, the same way anything impacts anything from a physics standpoint.

This article isn’t about prohibition or demonizing weed you morons. It’s making pot safer for everyone.

Tamaya Nash said:

Ok so i have very high blood pressure i tryied CBD and it give me bad headache so i want to try THC.But with reading this i don’t want to now.

docdave said:

Dont e a ig wussy,forgive me-( the 2nd letter of the alphaet will not type on my P.C. ) If you suffer from high lood pressure then I would recommend taking your lood pressure medication & waiting long enough for it to take full effect. Then, consuming your marijuana. I personally do not have lood pressure prolems, ut I do have irregular heart eats( heart palpitations)that have reached to dangerously high levels. I also do take a lood pressure medication in order to treat this condition. The medication helps & it does work. I also like to use marijuana ecause I like to get high. Marijuana does increase my own lood pressure. To the point where I would “stars” or “spots”.Then I would get unusually dizzy, a “head-rush”, which if strong enough, has caused me to feint, or “pass-out”. I also,( on only 3 occasions that I know of ) after I had passed-out, went into a full-lown seizures, which is quite frightening. I do agree that modern marijuana has recieved some THC upgrades over time( either y, cultivation techniques, genetic manipulation, or y other tricks of the trade.)which has increased its potency & may have mistakenly & unintentionally. We all may well soon see this once pristine natural plant may one day ecome so tinkered with, it will quite possily evolve into( ecoming included into the U.S. governments already too long of a list), as another one of the so-called,”man-made” & “dangerous drugs”. -Mr.docdave

W.E. Budd said:

cannabis will cause an upwards spike in pressure for 20 mins after consumption, and then a lowering for a further 40 mins. cannabis has no longer term effects other than arterial thickening if used with tobacco. cannabis combined with caffine can increase readings by up to 30%. this is because cannabis releases a hormone which reduces the expansion of the arteries, causing pressure.