# Foundayo Blood Pressure: Does Orforglipron Lower BP?

Source: https://www.dietglp.com/blog/foundayo-blood-pressure/
Published: 2026-11-09
Keywords: foundayo blood pressure, orforglipron blood pressure, foundayo lower blood pressure, foundayo help with blood pressure, can foundayo affect blood pressure, foundayo cause high blood pressure, foundayo side effects blood pressure, foundayo low blood pressure, foundayo heart rate, orforglipron hypertension, foundayo and blood pressure medication, orforglipron systolic blood pressure

**TL;DR:** Yes, Foundayo (orforglipron) tends to lower blood pressure a little. New analyses shown at the American Heart Association meeting in November 2026 found systolic blood pressure fell about 6.1 points on Foundayo versus 0.8 on placebo over 72 weeks in people without diabetes, with most of the drop explained by weight loss. The label also notes low blood pressure in 2% of users (4% of those already on BP pills) and a heart rate rise of 4 to 5 beats per minute. Weight loss that keeps muscle is what drives most of this, and [Sharpy](https://apps.apple.com/us/app/glp-diet-app-sharpy/id6762084138) helps with one protein target and one 20-minute workout a day.

Does Foundayo lower blood pressure? **On average, yes, by a modest amount. In the ATTAIN-1 trial, systolic blood pressure (the top number) fell 6.1 mm Hg on Foundayo (orforglipron) versus 0.8 mm Hg on placebo over 72 weeks.** That result comes from new post hoc analyses presented at the American Heart Association Scientific Sessions in Chicago (November 6 to 9, 2026). Most of the drop tracked with weight loss. Foundayo is approved for weight management, not for treating high blood pressure.

The label adds two things worth knowing: blood pressure can sometimes drop too low, and heart rate goes up slightly. Here is what the numbers say, in plain English.

## Foundayo blood pressure results at a glance

These are the pooled-dose results from the AHA 2026 abstract (Laffin and colleagues, Abstract 7876), as reported by Pharmacy Times on November 8, 2026.

| Trial | Who was in it | Systolic change: Foundayo | Systolic change: placebo | Diastolic change: Foundayo vs placebo |
|---|---|---|---|---|
| ATTAIN-1 | 3,127 adults with obesity, no diabetes | -6.1 mm Hg | -0.8 mm Hg | -2.5 vs -0.9 mm Hg |
| ATTAIN-2 | 1,613 adults with type 2 diabetes and BMI 27+ | -4.9 mm Hg | -1.5 mm Hg | -1.3 vs -1.4 mm Hg |

So the top number moved in both trials. The bottom number (diastolic) moved a little in ATTAIN-1 and basically not at all in ATTAIN-2.

## Does Foundayo help more if your blood pressure is already high?

It looked that way. People who started with stage 1 or stage 2 high blood pressure saw bigger drops:

| Starting blood pressure | ATTAIN-1: Foundayo vs placebo | ATTAIN-2: Foundayo vs placebo |
|---|---|---|
| Stage 1 hypertension | -7.6 vs -1.7 mm Hg | -5.6 vs -2.3 mm Hg |
| Stage 2 hypertension | -15.9 vs -11.1 mm Hg | -15.8 vs -8.2 mm Hg |

Notice that placebo groups with stage 2 readings also dropped a lot. Very high readings often come down on their own when re-measured, and people in trials get regular checkups and lifestyle advice. The fair comparison is the gap between the two columns, not the Foundayo number alone.

## What the Foundayo label says about blood pressure by dose

The FDA label (July 2026 version) lists blood pressure changes at 72 weeks for each studied dose. Trial 1 is ATTAIN-1; Trial 2 is ATTAIN-2.

| Dose | Trial 1 systolic change (vs placebo) | Trial 2 systolic change (vs placebo) |
|---|---|---|
| 5.5 mg | -5.7 (-4.2) | -4.0 (-2.5) |
| 9 mg | -5.1 (-3.7) | -4.2 (-2.7) |
| 17.2 mg | -6.4 (-4.9) | -4.6 (-3.0) |
| Placebo | -1.4 | -1.5 |

Average starting systolic pressure was about 125 mm Hg in Trial 1 and about 131 mm Hg in Trial 2, so most people started near normal. The label marks these blood pressure results as not controlled for multiplicity, which means they are supporting findings, not main goals of the trials. For how the doses step up, see our [Foundayo guide](/blog/foundayo-orforglipron-guide/).

## Is it the drug or the weight loss?

Mostly the weight loss. The AHA analysis estimated that weight reduction explained about 58% of the systolic drop in ATTAIN-1 and about 81% in ATTAIN-2. The authors wrote that the effect appeared to be at least partly independent of weight loss.

That matches what we see with other GLP-1 drugs. Losing weight usually lowers blood pressure, whatever causes it. It also means the kind of weight you lose matters. Fat loss helps your heart. Losing a lot of muscle along the way can leave you weaker and make the weight easier to regain.

This is where [Sharpy](https://apps.apple.com/us/app/glp-diet-app-sharpy/id6762084138) fits in. It gives you one daily protein target and one 20-minute strength workout, then rolls your progress into a single Shape Score, so the weight that comes off is mostly fat. Our [protein target guide](/blog/protein-target-on-glp1/) explains the numbers behind it.

## Can Foundayo cause low blood pressure?

Yes, in a small number of people. From the label's pooled trial data:

- Hypotension (low blood pressure) happened in **2%** of people on Foundayo versus **0.5%** on placebo.
- It was more common in people also taking blood pressure medicine: **4%** versus **1%** in those not taking one.

Signs of low blood pressure include dizziness or lightheadedness, especially when you stand up, feeling faint and blurry vision. Vomiting, diarrhea and drinking too little can make it worse, because dehydration lowers blood pressure too.

If you take blood pressure medicine, ask your prescriber how often to check your readings while you lose weight. Some people need their BP medicine adjusted as the pounds come off. That is a decision for your doctor, never something to change on your own.

## Does Foundayo raise heart rate?

Slightly. The label says heart rate went up **4 to 5 beats per minute** on average with Foundayo, versus 0.5 with placebo. Tachycardia (a fast heart rate) was reported in **3%** of users versus 0.9% on placebo. Lilly's medical information page lists the 72-week rise in ATTAIN-1 as 4.3 to 5.3 beats per minute across doses.

A small pulse increase is a known effect of the GLP-1 drug class. Tell your prescriber about a racing heart at rest, palpitations or chest pain.

## Foundayo vs Wegovy for blood pressure

There is no head-to-head blood pressure trial. In separate trials, Wegovy injection (semaglutide 2.4 mg) lowered systolic pressure 6.2 mm Hg versus 1.1 on placebo in STEP 1 at 68 weeks, close to Foundayo's 6.1 in ATTAIN-1. Different trials enrolled different people, so treat this as a rough comparison only. For weight loss, side effects and cost side by side, see [Wegovy pill vs Foundayo](/blog/wegovy-pill-vs-foundayo/).

## What is still unknown

- **Post hoc only.** The AHA results were not planned main goals of the trials.
- **Office readings only.** No 24-hour home monitoring was reported.
- **BP medicine changes were not reported**, so some drops could reflect medicine changes.
- **No heart outcome data yet.** These numbers say nothing about heart attacks or strokes.

Lilly is running dedicated trials of orforglipron in people with hypertension and obesity, called ATTAIN-Hypertension, listed on ClinicalTrials.gov. Results have not been published yet.

## How to support healthy blood pressure on Foundayo

- **Check your readings** if your prescriber asks you to, and bring the log to visits.
- **Drink enough fluids**, especially during stomach side effects.
- **Stand up slowly** if you feel lightheaded.
- **Keep moving.** Regular walking and strength work both help blood pressure. Our [cardio vs strength guide](/blog/cardio-vs-strength-glp1/) shows how to split a week.
- **Protect muscle** with enough protein at each meal.

If you want a simple daily plan for that last part, [Sharpy](https://apps.apple.com/us/app/glp-diet-app-sharpy/id6762084138) tracks your protein, your 20-minute workout and your Shape Score in one place.

Pregnant, under 18, or have a history of an eating disorder or fainting? Talk to your doctor before starting any GLP-1 medicine.

## Sources

- [Pharmacy Times: Orforglipron Lowers Systolic BP in ATTAIN-1, ATTAIN-2 Analyses (Nov 8, 2026)](https://www.pharmacytimes.com/view/orforglipron-lowers-systolic-bp-in-attain-1-attain-2-analyses)
- [Foundayo US prescribing information (DailyMed)](https://dailymed.nlm.nih.gov/dailymed/search.cfm?labeltype=all&query=foundayo)
- [Lilly Medical: Incidence of hypotension with Foundayo](https://medical.lilly.com/us/products/answers/what-is-the-incidence-of-hypotension-with-foundayo-orforglipron-315902)
- [Lilly Medical: Foundayo and heart rate](https://medical.lilly.com/us/products/answers/does-foundayo-orforglipron-lead-to-changes-in-heart-rate-318412)
- [Wilding et al. STEP 1, NEJM 2021](https://www.nejm.org/doi/full/10.1056/NEJMoa2032183)
- [ClinicalTrials.gov: ATTAIN-Hypertension (NCT06948435)](https://clinicaltrials.gov/study/NCT06948435)


## Frequently asked questions

**Q: Does Foundayo lower blood pressure?**

A: On average, a little. In the ATTAIN-1 trial, systolic blood pressure fell 6.1 mm Hg on orforglipron versus 0.8 mm Hg on placebo after 72 weeks, per a post hoc analysis presented at AHA Scientific Sessions 2026. In ATTAIN-2 (people with type 2 diabetes) it fell 4.9 versus 1.5 mm Hg. Foundayo is not approved as a blood pressure medicine.

**Q: Can Foundayo cause high blood pressure?**

A: High blood pressure is not listed as a common side effect on the US label, and in the trials average blood pressure went down, not up. What the label does list is a small rise in heart rate (4 to 5 beats per minute on average). If your readings go up on Foundayo, tell your prescriber.

**Q: Can Foundayo cause low blood pressure?**

A: Yes, sometimes. In the pooled phase 3 trials, hypotension (low blood pressure) was reported in 2% of people on Foundayo versus 0.5% on placebo. It was more common in people who also took blood pressure medicine (4%) than in those who did not (1%).

**Q: Can I take Foundayo with blood pressure medication?**

A: Many people in the trials did. The label notes low blood pressure was more frequent in that group, so your prescriber may want you to check your readings, especially as you lose weight. Never stop or change a blood pressure medicine on your own.

**Q: Does Foundayo raise your heart rate?**

A: A little. The label says Foundayo raised heart rate by 4 to 5 beats per minute on average versus 0.5 on placebo, and tachycardia (fast heart rate) was reported in 3% of users versus 0.9% on placebo.

**Q: Is the blood pressure drop from Foundayo just weight loss?**

A: Mostly. The AHA 2026 analysis estimated weight loss explained about 58% of the systolic drop in ATTAIN-1 and about 81% in ATTAIN-2. The authors said part of the effect may be separate from weight loss, but the analysis was post hoc and did not track changes to BP medicines.