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Discussion on Contracted Tendons and oxytetracycline

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Aubrey Berridge (Aubrey)
Posted on Wednesday, Jan 31, 2001 - 10:36 pm:   Edit PostPrint Post

Hi Dr. o,
Can you explain what Oxytetracycline does which helps relax contracted tendons? I read your article, which mentioned Oxytet as a treatment, and I have seen this treatment used, and was wondering about the mechanisms behind it. Thanks...

Aubrey
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Robert N. Oglesby DVM (Dro)
Posted on Thursday, Feb 1, 2001 - 9:04 am:   Edit PostPrint Post

Hello Aubrey,
It is believed that it's ability to bind up calcium weakens (relaxing) the muscles. This is temporary however and the affect wears off in several days. So this techinue is mainly a time buying procedure. It is currently unknown if the long term results are affected by this treatment.
DrO
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Aubrey Berridge (Aubrey)
Posted on Thursday, Feb 1, 2001 - 2:56 pm:   Edit PostPrint Post

Dr. O,
Thank you...that makes sense.

Aubrey
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Denise Bryant
New Member
Username: Contilli

Post Number: 1
Registered: 3-2004
Posted on Sunday, Mar 21, 2004 - 5:27 pm:   Edit PostPrint Post

How do you administer Oxytetracycline?
My vet administers it directly into her juggler with a syringe and my sisters vet used a bag/iv which said oxytetracycline which took 20 minutes.
Thank you for your help.
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Robert N. Oglesby DVM
Moderator
Username: Dro

Post Number: 10128
Registered: 1-1997
Posted on Monday, Mar 22, 2004 - 6:19 am:   Edit PostPrint Post

The problem is it has to be given very slowly or you might cause shock secondary to calcium binding. I dilute and give in saline because it is easier to manage the catheter.
DrO
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Kim Baxter
Member
Username: kbaxter

Post Number: 16
Registered: 8-2006
Posted on Saturday, May 31, 2008 - 5:14 pm:   Edit PostPrint Post

I've noted that these posts are over 4 years old but I have a story to share. Our 14 mo. filly (at the time)responded favorably to the Oxytetracycline. She needed it twice with 30 days in between. Originally I had no idea what what was wrong with her because I am fairly new to owning horses and this is my first foal. If I had been on the ball I would have noticed it long before it got so bad that we were not sure she would recover. Unfortunately my vet was out of town and the vet on call was so busy it was hard for him to get the time to come out (I live way out in the boonies) to see her. He initially tried diagnosing her via the telephone. All I can say is we were lucky that she responded so favorably. Along with using the Oxytetracycline we trimmed her heels way down to encourage the tendons to stretch and we walked her every few hours every day. Controlled exercise for 2 months and now she is back to happy horse play. I have to say having to be handled so much for so long has made it so much easier to train her. She ties, trims, bathes and stands beautifully. We have started her under a lightweight saddle a couple times a week. All of this might have been avoided if I had been tuned in to how to feed a growing foal. We were feeding her too much and she was growing way too fast, we first cut back on her feed then proceeded with everything else. A big lesson learned. I hope my experience can help someone else who might find themselves in this situation. This site was a tremendous help during these trying times. Thanks Dr. O for having this available.
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