Will my treatment be adjusted when I quit?

Probably downwards. Many patients see their blood pressure settle lower after 2 to 4 weeks off cigarettes — your doctor can reduce the doses or simplify the treatment.

I am afraid the stress of quitting will raise my blood pressure.

Withdrawal stress lasts 2 to 4 weeks. Beyond that, baseline blood pressure drops in most people. Nicotine substitutes help you through this phase.

Why does my doctor never mention smoking?

Sometimes by reticence, sometimes by lack of time. Ask directly for a referral to a tobacco-cessation specialist, or use the helpline. You are entitled to real support.

Can tobacco cause hypertension in someone who did not have it?

Yes — in heavy smokers, the risk of developing high blood pressure is raised by 20 to 30%, mostly through arterial stiffening.

Hypertension and tobacco: why this combination doubles the risk of stroke and heart attack

High blood pressure plus cigarettes is an explosive vascular cocktail. Here is how the two worsen each other and what shifts when you quit.

June 20, 2026 Aria

The scientific basis on quitting smoking was reviewed on a voluntary basis by Pr. Bertrand Dautzenberg , a tobacco specialist, in order to rule out gross, potentially dangerous errors. It reflects positions commonly shared by health professionals and health agencies, without always corresponding exactly to his thinking or his practice. He is not the author of this text; he has only carried out a vigilance review of it.

You take a treatment for your blood pressure. And you still smoke. Maybe you tell yourself the two problems live in separate corners of your body. In truth, they worsen one another — far more than a simple sum.

What the cigarette does to your blood pressure, in real time

With each cigarette, your blood pressure rises by 5 to 10 mmHg for 20 to 30 minutes, and your heart rate climbs by 10 to 20 beats/minute. Smoke 15 cigarettes a day? Your heart goes through 15 pressure surges, 15 times a day.

× 2 the 10-year cardiovascular risk in smokers, doubled again when hypertension is on top.

Gallucci et al., J Thorac Dis, 2020

Chronic hypertension: tobacco changes the game

If you measure your blood pressure before and after the first cigarette, you see the surge. But the real problem is more insidious:

the cigarette progressively stiffens your arteries (accelerated atherosclerosis),
it reduces the flexibility of vessels (endothelial dysfunction),
it raises the risk of plaques that rupture,
and it accelerates the development of aneurysms, especially of the abdominal aorta.

On arteries already under pressure, it is the equivalent of inflating a tyre that is already weakened.

The trap many do not know: your medicines

Tobacco disturbs the metabolism of several antihypertensive medicines. Concretely:

beta-blockers (like bisoprolol, atenolol) are less effective in smokers,
calcium channel blockers can see their action reduced,
the arterial stiffness induced by tobacco counters the vasodilator effect of several treatments.

What changes when you quit

20 minutes blood pressure and heart rate start to come down.
24 hours heart attack risk dropping.
2 to 4 weeks baseline blood pressure stabilises (often 3 to 5 mmHg lower).
1 year heart attack risk halved.
5 years stroke risk close to that of a non-smoker.

Quitting alone can lower your blood pressure by as much as half an antihypertensive pill. With no side effect, no cost, and as a bonus: less cough, more breath, more money.

And the e-cigarette?

For a hypertensive smoker, switching to vaping cuts most of the harmful cardiovascular effects of combustion (carbon monoxide in particular). It remains a transition step, not a final goal.

In United Kingdom

Your questions

Will my treatment be adjusted when I quit?

Probably downwards. Many patients see their blood pressure settle lower after 2 to 4 weeks off cigarettes — your doctor can reduce the doses or simplify the treatment.
I am afraid the stress of quitting will raise my blood pressure.

Withdrawal stress lasts 2 to 4 weeks. Beyond that, baseline blood pressure drops in most people. Nicotine substitutes help you through this phase.
Why does my doctor never mention smoking?

Sometimes by reticence, sometimes by lack of time. Ask directly for a referral to a tobacco-cessation specialist, or use the helpline. You are entitled to real support.
Can tobacco cause hypertension in someone who did not have it?

Yes — in heavy smokers, the risk of developing high blood pressure is raised by 20 to 30%, mostly through arterial stiffening.

sources

Gallucci G et al., Cardiovascular risk of smoking and benefits of smoking cessation, J Thorac Dis, 2020.
European Society of Cardiology / European Society of Hypertension, Guidelines for the management of arterial hypertension, 2023.
Critchley JA, Capewell S, Smoking cessation for the secondary prevention of coronary heart disease, Cochrane Database Syst Rev.
NICE, Hypertension in adults: diagnosis and management (NG136), updated 2022.
Blood Pressure UK, Smoking and high blood pressure, 2024.