Does Miralax Raise Blood Pressure
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I've never had a blood pressure issue and since taking MiraLAX for a week for constipation my lood pressure was 166/104! Could it be the MiraLAX?

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Re: Linda (# 48) Expand Referenced Message

My BP has been high 187/101 and usually runs 115/65. Been to heat Dr and primary care provider. Each time they changed my BP pill frequency with no positive results. Stopped Miralax and bingo, BP went down after a week!

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51

Re: Medical Mess (# 5) Expand Referenced Message

Yes made my BP go up . Didn’t finish taking it for my colonoscopy , which I cancelled.

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50

Re: Tony (# 49) Expand Referenced Message

They like to use this prep because it’s Gentle, but I can’t do it either. The volume of it makes me vomit it all up and then it doesn’t work. When I can try again they told me to ask for a specific prep they will note in my file (I don’t remember the name) I guess it’s the equivalent of a shot or two but it tastes really gross. I don’t really care how it tastes if it’s only two swallows, vomiting up all that MiraLAX and Gatorade tasted pretty gross and I didn’t even get to have the procedure so . . .

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49

Re: John (# 42) Expand Referenced Message

I just went through the same thing. l did the prep on Tuesday & Wednesday. I went to get the procedure and they sent me home. My BP went from 140/75 to 210/110. So I prepped for nothing. My BP is still high at 175/99 and I’m waiting for my cardiologist to call me back.

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48

Re: John (# 42) Expand Referenced Message

I did the same pre colonoscopy prep. Couldn’t figure out why I was getting a pounding headache and flushing. My BP is usually 118/60, but it went up to 165/90! Glad I found this forum, now I know it was the Miralax! Hoping it goes back down after the procedure tomorrow

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47

Re: Verwon (# 1) Expand Referenced Message

Raised mine as well. After I finished with a bm x 3 it went back to normal

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46

Yes, this happens to my family member every time they take it. Feels like crap and bp goes up despite being well controlled on a couple of different meds! No doubt it's the Miralax. It needs a warning - there are enough comments here to confirm it is not a super rare side effect in women over 60!

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45

Re: NorthernLiz (# 44) Expand Referenced Message

A follow-up to this: My BP finally came down after 8 days, and with it the constipation came back. After getting badly bloated and plugged up again I took 1 Senokot in the evening.

2 hours later my BP went up 25 points and continued to be high all the next day (while the laxative worked). It topped out at 160/89. Finally the day after that (today) it came down again (so far).

I am newly on metoprolol, a beta blocker, and never had constipation issues until I was on it. Since I've now experienced a significant rise on 2 different laxatives of 2 different types (osmotic and stimulant) I am thinking now that it is some interaction with the beta blocker and the bowel signaling causing this and not the laxative itself.

5 years ago I used a PEG-based colonoscopy prep that I had no issues with. I wasn't on BP meds at the time nor a beta blocker.

I would be very interested in hearing if anyone else having this issue was also on a beta blocker and if so, which one.

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44

Re: John (# 42) Expand Referenced Message

Did your BP go back down? If so, how long did it take? Mine is still messed up!

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43

This just happened to me. I have an aneurysm so must closely watch my BP and it has been around 110/70 for weeks. I took one packet of Miralax and 2 hours later it was 150/90! It was high for the next 48 hours (topped at 170/90 one morning, very scary!) and is finally coming down today. I will never take a PEG-3350 medication again. BP this high could rupture my aneurysm. I wish more doctors knew about the possibility of dangerously high BP from this substance.

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42

I’m so glad I found this thread. Showed up for my colonoscopy today and my BP was so high that they couldn’t perform the procedure. At one point was 220/120. A week prior, at the dentist, it was around 150/80 (still not great, but much lower). They strongly suggested I go to the ER, so I did that and was prescribed BP meds. Hoping that once the Miralax gets out of my system we’ll see a decrease back to normal range. The dose I was prescribed for my prep was 15 doses yesterday (about 8.3 oz) mixed with Gatorade and then another 4 doses this morning before the procedure. Very scary.

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41

Re: Rhondajr51 (# 35) Expand Referenced Message

The last time I checked, it is not listed as a side effect but it definitely raised my BP and many of my friends. Doctors don’t believe it when it isn’t listed.

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40

Re: Medical Mess (# 5) Expand Referenced Message

Drink prune juice

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39

My BP got high for a few days and I ended up in the ER. I haven't kept exact records, but here we go again. I took it last night and today. My BP has crept up all day and I can feel when it gets high. I am going to discontinue it to see if it goes down. It was great seeing these posts.

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38

Re: Josh (# 3) Expand Referenced Message

My blood pressure is very high on it.

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37

Yes my husband too, 180’s / 100, every time he used it. When he stopped it went back to normal. Never again.

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36

Re: Rhondajr51 (# 35) Expand Referenced Message

Yep, my blood pressure has spiked on miralax too. I'm having to take BP meds to bring it down. It got to 165/110 last night. Also be aware of certain stomach teas with licorice.

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35

Re: Terry (# 33) Expand Referenced Message

My blood pressure is very high and I took MIRALAX lastnight I starting getting a light funny feeling in my head it's scary I stopped n started thinking what I took or ate yesterday then I remembered my head feeling like this before my blood pressure was high then so I just took my blood pressure 159 over 94 then 166 over 97 it has to be the MIRALAX I am going to call my dr to ask

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34

Are you taking anything else that could raise your blood pressure if it accumulates in your system too much? Sometimes when you’re constipated you get issues with stuff staying in your system too long.

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33

Re: Medical Mess (# 5) Expand Referenced Message

I noticed my BP went up and I'm looking for answers. It used to run 110/70 and now runs in the 140s/80s. I thought it was wellbutrin because it correlates time wise but then I thought about the only other med I take and was curious about miralax.

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