Injectable Doxycycline = Vibravenous/Vibravenos

A wonder-drug for aggressive respiratory infections

Over the past year or so, a certain type of medication has received some slight but much deserved publicity as an amazing tool in the fight against respiratory infections in rats.  Practically all pet rats have a bacteria (Mycoplasma pulmonis) in their lungs, and this bacteria is usually responsible for the respiratory problems that are so common in pet rats because myco gradually damages the lungs –  making rats more prone to secondary respiratory infections. Vibravenous (or Vibravenos) tetracycline is an injectable, slow-release form of doxycycline.

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Injectable Doxycycline = Vibravenous/Vibravenos | My experience

In May of 2002 my rat Rimsky suddenly became very ill with a respiratory infection.  Previous to this, he had been on azithromicin for a couple of weeks to try and clear up some mild symptoms but then he suddenly went downhill. He was extremely lethargic, breathing heavily and refused to eat. He would only take a little water from a syringe. A trip to the emergency vet wasn’t very helpful (no proper antibiotics) but Rimsky did get some sub-cu fluids and oxygen.  Rimsky had to wait until the morning to see a regular vet. In the morning, Rimksy looked near death, laying on his side heaving.

Read moreInjectable Doxycycline = Vibravenous/Vibravenos | My experience

Injectable Doxycycline = Vibravenous/Vibravenos | Others’ Experiences

Direct quote from Jane Adamo, ratlist message 51601 “I, and a number of other RatListers have seen incredible, wonderful, fast, effective results in treating myco symptoms with this medication. …



I asked about the dosage of the medication that Rimsky had received and all the vet told me was that the concentration of the solution was 100mg/5mL.  I snuck a peek at one of Rimsky’s patient sheets and it said that he had received 1 cc (1 mL). I intend to get more detailed information and verify this information the next time I go to the vet.  From this information, I tentatively believe that Rimsky received 20 mg. He is roughly 500g (0.5 kg or 1 lb) in weight, so he got a dose of 40mg/kg (or 20mg/lb). This seems a bit low compared to some other things I have read.

Read moreInjectable Doxycycline = Vibravenous/Vibravenos | Others’ Experiences