Anyone else find the side effects of Hydrea 500MG frightening?

Posted by eddb @eddb, Oct 1, 2023

I was diagnosed with having a blood cancer that looks and acts a lot like Polycythemia Vera (PV) about 6 years ago. I’ve been rolling along ok with (mostly monthly) phlebotomies, until a year or so ago. At that point my white blood cells and (most importantly) my platelet levels started to increase. The doc did a 2nd bone marrow extraction but I STILL tested negative for PV. After a CT scan and other tests were done to rule out any possible hidden bodily infections, my doc prescribed Hydrea 500 MG. I filled the script about a week and a half ago…and it is still sitting in a bag on my counter, unopened. I got seriously freaked out when I researched the drug and found all those nasty side effects associated with the drug.

Now, I’m sitting here knowing that my platelet count as of 3 days ago was 987 (over twice the normal level limit) and that I could throw a blood clot at anytime. I was holding off taking the drug, to get an appointment with a hematologist/oncologist for a 2nd opinion, but that appointment isn’t for another 10 days - I’m a nervous wreck! I do not want to take the chance with hydrea but I don’t want to clot. I don’t even have a real diagnosis other than suspicion of bone marrow cancer or the beginning stages of it….

I’d be curious to hear about what others have experienced while on this drug. Much appreciated!

Interested in more discussions like this? Go to the Blood Cancers & Disorders Support Group.

I have been in hydroxy for 6 weeks now. I take 2(500mg) a day. I was diagnosed MDS (low risk) 8 yrs ago.(Wait and watch approach). all of a sudden my routine every 3 month blood test came back with my white cell count at 50. I had a bone marrow biopsy done and I was diagnosed with CMML borderline AML. Not good. One week later my oncologist put me on 2(500mg) hydroxy and my count went down to 24 and then the next week to 14. My oncologist also couldn’t believe how good all my blood test results came back. So she let me go on vacation for 3 weeks. I never felt better. I go for a blood test tomorrow. Saying my
Prayers all is well. Also if so I hope to reduce the dosage and see. I was the same scared lady who looked up the info on the drug and panicked. But if I were you I would ignore that and give it a try. Also Lori on this chat group gave me a lot of confidence. She knows a lot about blood cancers and helps everyone out with reliable information. We are blessed to have her.

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I developed a very high fever, shakes and chills came with it. It was scary. Tried hydroxy 3 times and every time the same thing even with a low dose like 200 mg. Be aware of that. I won’t take it anymore. Do you take aspirin or some kind of a blood thinner? That , supposedly , helps with clots.
Some doctors do not start treating the high level of platelets till they reach a million, which what I had to start with .

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@jacklyn

Hi there: can I ask how old you are and what dosage you are taking. I have been diagnosed with CMML and I am 76 and my doctor put me on hydroxy 2(500)mg after my white cell count was 50. After the first week my count came down to 24. Second week it came down to 14. My oncologist couldn’t believe my blood tests and how good everything was. It has been 3 weeks now and I go for blood work tomorrow. I went on vacation. I have never felt better since being on this drug. I hope they lower the dosage.
I have more energy now than before. I did read the life span of someone with CMML is 20-30 months. How long have you had CMML.

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Hi @jacklyn Wow, I’m so happy to read that you’ve been feeling great since starting the hydroxy and had a great vacation with your son! I remember you being so worried the first time we talked about starting the hydroxy. So glad this is working out for you. ☺️

I’d like to encourage you not to get so focused on life span for someone with CMML. Just live life without an end date! Or as I like to say, Live like they left the gate open! LOL.

According to an article from Penn Medicine, “Many chronic myelomonocytic leukemia (CMML) continue to live full lives after their diagnosis and are minimally affected by their disease.” Here’s the full article. https://www.pennmedicine.org/cancer/types-of-cancer/leukemia/types-of-leukemia/chronic-myelomonocytic-leukemia

Good luck on your blood work tomorrow! Let me know what you find out, ok?

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I've been on HU for 3 1/2 years now.......first year my gut had to get use to HU, but now ok........I was more frightened of stroke or heart attack than HU, but that's me, everyone finds their own path.

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@loribmt

Hi @jacklyn Wow, I’m so happy to read that you’ve been feeling great since starting the hydroxy and had a great vacation with your son! I remember you being so worried the first time we talked about starting the hydroxy. So glad this is working out for you. ☺️

I’d like to encourage you not to get so focused on life span for someone with CMML. Just live life without an end date! Or as I like to say, Live like they left the gate open! LOL.

According to an article from Penn Medicine, “Many chronic myelomonocytic leukemia (CMML) continue to live full lives after their diagnosis and are minimally affected by their disease.” Here’s the full article. https://www.pennmedicine.org/cancer/types-of-cancer/leukemia/types-of-leukemia/chronic-myelomonocytic-leukemia

Good luck on your blood work tomorrow! Let me know what you find out, ok?

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Thank you for such a great article. You are right. I am tolerating hydroxy and have more energy than I have had in a long time. I also had to get off my Symbicort inhaler that my pulmonologist put me on when I was hospitalized last December for pneumonia. He agreed with my oncologist that I should come off of it. I ended up having anxiety the first week of my vacation and found out it was a side effect coming off Symbicort. Happy that is done and my breathing is fine. I mean I get out of breath at times but I am 76.
I will let you know my results today. There were a lot of sick looking people in the Oncology ward this morning. I said a prayer for all of us. I am blessed so far. Talk to you soon Lori. Thanks again.

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I was on hydroxyurea (Hydrea) for 7 years for Essential Thrombocythemia (aka way too many platelets) prior to my stem cell transplant 5 months ago. I felt totally normal on my daily maintenance dose and lived my life normally for those years while on the medication.
Hope you continue to do well. Lynn

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I was diagnosed yesterday. I picked up the prescription for the dreaded Hydroxyurea 500 and was hesitant to take it. I do not want the clots and
I don’t want to wait. I have read on another blog that the side effect vary
from person to person. If I don’t try it I think I will regret it. This is the
only medication for ET for now. I took my first dose today and I’m still here.
Fear is a force that keeps you from making a move. Best wishes.

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I have been on Hydroxyurea 500 daily for one month, following month went to 5 days a week and now am on 3 days a week. It has moved from 890 platelets at the start of this year and it is now 386 as of last week. But with this reduction on platelets, it has also lowered my hemoglobin, white blood cells as well as red blood cells and my fingernails have become blackish, darker, hence the reason for reducing the dosage as shown here above.

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Are you able to take a low dose aspirin a day?

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@lynnevb

Good Luck to Everyone on this site. Here is a bit of my story for those who feel alone with their diagnosis.
I am 70 yo and was diagnosed with ET 21 years ago (triple negative). I have been on hydrea 1500mg 3 days a week and 1000 mg four days a week for the past 8 years or so. No side effects except for heartburn and if I take hydrea with a meal the heartburn is not as bad. Sometimes I need tums or pepcid or ginger if the heart burn gets worse.
When I was under age 60 I did not need to be on hydrea. Once I turned 60yo I was in a higher category for stroke so I was started on hydrea. I have been on baby aspirin daily for about 18 years. I have had 2 bone marrow biopsies in total. I am not sure if I have been lucky or I had skilled physicians but the biopsies were not that bad at all. I eat a whole foods diet and stay away from processed foods, keep my weight in the normal range and exercise regularly. I try to life the life I have and be grateful but I do acknowledge that someday I will die. I do have fears of ET transitioning to a worse diagnosis but I try not to dwell in this mindset as I am doing everything I know to be as healthy as I can. I leave in 10 days for a month in europe. My support socks are purchased and I am looking forward to some adventures. Wish me luck and I will check in with you when I return.

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I am 72, have ET with JAK2, and been on Droxia for 10 years. My dosage has been increased recently to 800mg per day while my platelet count remains in the low 600s. As the Droxia increases, the anxiety does as well. The idea of chemo pills being in my system for 10 years is frightening. I have been frantically trying to find alternatives including diet; supplements; integrative medicine; etc. Yesterday my Hematologist/Oncologist mentioned two other drugs, both with bad side effects. Just when I felt I was out of hope and resources, I read your post this a.m. and feel so much better. I continue to find this site encouraging and appreciate all the comments by Lori. Thank you all for keeping the faith and sharing your experiences. It helps so much.....

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