9 Medications That Raise Blood Pressure as a Side Effect

You are doing everything right. You eat well, exercise regularly, limit sodium, and manage stress. But your blood pressure readings are still higher than they should be. Before assuming genetics or bad luck, take a look at your medicine cabinet. An estimated 15 to 20 percent of hypertension cases may be caused or worsened by medications, many of them available over the counter.

Here are 9 medication categories that can raise blood pressure.

1. NSAIDs: The Most Common Culprit Hiding in Plain Sight

Nonsteroidal anti-inflammatory drugs, including ibuprofen (Advil, Motrin), naproxen (Aleve), and celecoxib (Celebrex), are among the most widely used medications in the world. They are also one of the most common causes of drug-induced hypertension. NSAIDs raise blood pressure by an average of 3 to 6 mmHg, and in some individuals the increase can be much higher. They work by blocking cyclooxygenase (COX) enzymes, which reduces pain and inflammation but also decreases prostaglandin production in the kidneys. Prostaglandins help regulate blood flow and sodium excretion. Without them, the kidneys retain sodium and fluid, blood volume increases, and blood pressure rises. Regular NSAID use can also blunt the effectiveness of blood pressure medications, including ACE inhibitors and diuretics.

Why it matters for your metabolic age: If NSAIDs are silently raising your blood pressure by 5 mmHg, that hidden increase is aging your cardiovascular system and pushing your metabolic age higher.

2. Decongestants: The Cold Medicine Blood Pressure Trap

Pseudoephedrine (Sudafed) and phenylephrine, found in many cold, flu, and sinus medications, are sympathomimetic drugs that constrict blood vessels to reduce nasal congestion. The problem is they constrict blood vessels everywhere, not just in your nose. Pseudoephedrine can raise systolic blood pressure by 1 to 3 mmHg on average, but in sensitive individuals or at higher doses, the increase can be much larger. A study in the Archives of Internal Medicine found that pseudoephedrine use was associated with a 2.5 times increased risk of a hypertensive episode requiring emergency care. If you have hypertension, look for decongestant-free versions of cold medications. Saline nasal sprays and antihistamines like cetirizine or loratadine are safer alternatives.

3. Oral Contraceptives: A Significant Risk for Some Women

Estrogen-containing birth control pills are associated with blood pressure increases of 3 to 6 mmHg systolic on average. For most women, this is manageable, but about 5 percent develop clinically significant hypertension while taking oral contraceptives. The risk increases with age, obesity, duration of use, and family history of hypertension. The mechanism involves estrogen-mediated activation of the RAAS system and increased production of angiotensinogen by the liver. If you have hypertension or strong risk factors, progestin-only pills, IUDs, or non-hormonal methods may be better options. Women who develop hypertension on oral contraceptives typically see their blood pressure return to normal within 3 to 6 months of stopping.

Why it matters for your metabolic age: Oral contraceptive-related hypertension is reversible, but only if you are monitoring your blood pressure and recognize the connection.

4. Antidepressants: Some Classes More Than Others

SNRIs (serotonin-norepinephrine reuptake inhibitors) like venlafaxine (Effexor) and duloxetine (Cymbalta) can raise blood pressure by increasing norepinephrine levels. Venlafaxine at higher doses (above 300 mg/day) has been associated with sustained blood pressure increases of 7 to 15 mmHg systolic in some patients. MAOIs (monoamine oxidase inhibitors), though rarely prescribed today, can cause severe hypertensive crises when combined with tyramine-containing foods like aged cheese and cured meats. SSRIs (selective serotonin reuptake inhibitors) like sertraline and fluoxetine are generally blood pressure-neutral and are preferred for patients with hypertension and depression. If you take an SNRI and have noticed rising blood pressure, discuss alternatives with your prescriber.

5. Corticosteroids: Powerful but Blood Pressure-Unfriendly

Corticosteroids like prednisone, dexamethasone, and hydrocortisone are used for a wide range of inflammatory conditions. They raise blood pressure through sodium and water retention, increased sensitivity to catecholamines, and suppression of nitric oxide production. The effect is dose-dependent. Low-dose or short-course steroids may have minimal impact, but chronic use at moderate to high doses can raise systolic blood pressure by 5 to 15 mmHg. A study in Annals of the Rheumatic Diseases found that rheumatoid arthritis patients on chronic prednisone had significantly higher blood pressure than those not using steroids. If you need long-term corticosteroids, your doctor should monitor your blood pressure closely and may need to adjust your antihypertensive regimen.

Why it matters for your metabolic age: Corticosteroids also raise blood sugar and promote weight gain, making them a triple threat to metabolic health.

6. Stimulant Medications for ADHD

Methylphenidate (Ritalin, Concerta) and amphetamines (Adderall, Vyvanse) are widely prescribed for ADHD and can raise blood pressure by 2 to 5 mmHg on average. For most patients, this is clinically insignificant, but for those with pre-existing hypertension, the increase can be problematic. A meta-analysis in the Journal of Child and Adolescent Psychopharmacology confirmed that stimulant medications produce small but statistically significant increases in both systolic and diastolic blood pressure. Regular blood pressure monitoring is recommended for all patients taking stimulant medications, especially adults with cardiovascular risk factors. Non-stimulant alternatives like atomoxetine (Strattera) and guanfacine can be considered for patients where blood pressure impact is a concern.

7. Immunosuppressants: Cyclosporine and Tacrolimus

Cyclosporine and tacrolimus are calcineurin inhibitors used to prevent organ transplant rejection and treat autoimmune conditions. Cyclosporine causes hypertension in up to 50 percent of patients, making it one of the most potent blood pressure-raising medications in clinical use. The mechanism involves renal vasoconstriction, sodium retention, and activation of the sympathetic nervous system. Tacrolimus has a somewhat lower incidence but still raises blood pressure in a significant proportion of patients. For transplant recipients, these medications are often essential and cannot be discontinued, so blood pressure is managed with calcium channel blockers, which are the preferred antihypertensives in this setting because they counteract the renal vasoconstriction.

8. Erythropoiesis-Stimulating Agents (ESAs)

Epoetin alfa (Procrit, Epogen) and darbepoetin alfa (Aranesp) are used to treat anemia in patients with chronic kidney disease and cancer. These drugs raise blood pressure in 20 to 30 percent of patients, sometimes severely. The mechanism involves increased blood viscosity as red blood cell counts rise, as well as direct vasoconstrictor effects. The TREAT trial found that targeting higher hemoglobin levels with ESAs was associated with a significantly increased risk of stroke and cardiovascular events, partly mediated through blood pressure increases. Current guidelines recommend using the lowest effective ESA dose and monitoring blood pressure frequently during treatment.

Why it matters for your metabolic age: If you are on ESAs, you likely already have kidney disease, which makes blood pressure control even more critical for slowing metabolic decline.

9. Herbal Supplements and Over-the-Counter Products

Several commonly used herbal and OTC products can raise blood pressure. Licorice root (found in teas and supplements) can cause sodium retention and significant hypertension. Caffeine pills and high-dose energy supplements can cause acute blood pressure spikes. Ephedra and bitter orange (synephrine), sometimes found in weight loss products, are sympathomimetics that constrict blood vessels. Even high-dose fish oil (above 3 grams per day) can cause blood pressure changes in some individuals. St. John’s Wort can interfere with blood pressure medication effectiveness. The key message is that “natural” does not mean blood pressure-safe. Always tell your doctor about every supplement and OTC product you use.

Know Where Your Blood Pressure Really Stands

Medications can quietly shift your blood pressure in ways you might not notice. Penlago’s MetaAge calculator helps you see the bigger picture by combining blood pressure with blood sugar, BMI, and age into a single metabolic age score. It is the fastest way to understand where you stand.

Find out your metabolic age in 60 seconds - free.