Doxycycline for Upper Respiratory Tract Infection User Reviews (Page 3)

• Ker...
• Taken for less than 1 month
• September 6, 2021

"Doryx is personally my super antibiotic drug. I suffer from upper respiratory infections often, I also suffer from asthma and have difficulty breathing when suffering from chest infections. The only antibiotic that works for me is Doryx. I have tried amoxicillin and other penicillin drugs, but they do not help with my respiratory condition like Doryx does. I had a flu vaccine a few years ago to prevent myself from getting the flu, but instead I got so sick from the flu vaccine I started wheezing, my chest was so tight, and I had severe body cramps, I could not walk without losing my breath. The only drug that saved me was Doryx. Within 3 days of taking Doryx, I was feeling much better and my body pains went away. I have never had any bad side effects, only slight nausea if I take it in the morning without food in my stomach, and if I take it right before bed I can suffer from heartburn."

• Wab...
• Taken for less than 1 month
• April 10, 2018

"Have taken antibiotics, and this is the only one that makes me feel nauseous. I take it with food because otherwise I couldn’t handle it. Two tablets a day until finished. On my forms from the pharmacy, it said nothing about avoiding dairy products! Will persevere."

• Jan...
• Taken for less than 1 month
• June 2, 2025

"I’ve been taking doxycycline for 5 days, 100 mg once a day. I have anxiety, for which I take antidepressants. This drug really aggravates my anxiety and my IBS. Also, I have a lot of back pain. I only have one kidney that works, and I feel it’s aggravated that too, so I’m now stopping it as I can do without the side effects and the added anxiety. This is the second time I’ve taken it, and it was like that last time, so no, I won’t be taking it again. I live in the UK and retired, so I have free medicine."

• Anonymous
• Taken for less than 1 month
• January 11, 2025

"Completed 2-week 50 mg bid dosage; still occasionally cough up yellowish/green phlegm. Doctor said to take with food to avoid upset stomach, yet one reviewer says doctor told her to take 2 hours before or after food. Hers worked; mine seemingly didn't. Some stomach cramping and constipation."

• BHa...
• Taken for less than 1 month
• December 5, 2018

"Very bad side effects. I had to stop after the second pill. After reading the possible side effects, I am wondering how this drug got approved. It can kill you in more than one way or make you blind. Ask your doctor for an alternative."

• v_c...
• March 3, 2010

Doxycycline "Great for COPD patients."

• Tor...
• Taken for less than 1 month
• November 15, 2018

"Had a terrible cough producing mucus for two weeks. Took 2 x 100 mg tablets on day one as instructed, and the 1st evening lying in bed without persistent cough. No side effects for me."

• DLa...
• Taken for less than 1 month
• February 13, 2017

"Prescribed these 4 days ago. Sickness on the 1st day, then dizziness on the 2nd day. Symptoms of chest infection improved by day 4. First prescribed amoxicillin, which didn't help."

• Sez...
• January 24, 2017

"First day I started these, I had to take two. 20 minutes later, I was sick 5 times in a row! Took another one today and feel great, it's been 2 hours and no sickness yet :-)"

• Mik...
• Taken for less than 1 month
• February 20, 2020

Doxycycline "No allergic reactions to doxy, cleared up my URTI. I took med as directed every 12 hrs. I drank lots of water with it."

• Anonymous
• Taken for less than 1 month
• June 9, 2023

"I am on day 6 of these tablets for a chest infection. It actually feels worse, I have a massive phlegm buildup while sleeping, shortness of breath, and a burning feeling in my feet."

• Anonymous
• January 11, 2011

"Doxycycline made me extremely ill with constant head pains. I was not able to sleep because of the inability to lay my head down."

• asd...
• May 17, 2023

"Always works. It's one a day, so much easier to remember. I always take it after food and have never had any problem."

• Anonymous
• Taken for less than 1 month
• January 29, 2019

"I had a chest with mucus, so was given doxy, which improved me through the day. I also took Allegra D, so don't know if it was the doxy or Allegra D that was the one that improved me (or both)."

• Nik...
• March 11, 2017

"Seemed to have no effect on my URTI. No sickness from this antibiotic, but I experience head pressure."

• con...
• July 11, 2017

"Started a 7-day course, which ended 7 days ago, and apart from bad stomach cramps, my symptoms as of today 11/07/17 are as bad as ever, no benefit to me at all."

• fis...
• Taken for less than 1 month
• February 22, 2017

"Given doxycycline 3 days ago. Nausea straight away got worse 3 days in and bad stomach pain. Severe nausea. Coating on teeth, etc., etc. Will never take again."

• whi...
• March 13, 2016

"I've been put on these tabs for a chest infection. Do they work? I have had 7 days of amoxicillin and it never worked."

• Don...
• Taken for less than 1 month
• September 14, 2021

"Severe stomach cramping, stomach pains, diarrhea. They should stick to using it for acne!"

• Che...
• Taken for less than 1 month
• November 29, 2019

"This medicine gave me extreme diarrhea for 2 days. I had to stop it."