By Sarah Guy, medwire News Reporter Doxycycline, an antibiotic derivative of tetracycline, commonly results in adverse gastrointestinal side effects and increased liver enzyme activity in cats, report German researchers. More than 10% of cats in their study developed vomiting and/or diarrhea following treatment with the drug, and of those tested, up to 18% of animals also showed changes in alanine aminotransferase (ALT) activity, says the team. The findings indicate a need to "carefully monitor" cats being treated with doxycycline, suggest Bianka Schulz (Ludwig Maximilian University Munich) and colleagues in Veterinary Record. They identified 168 cats treated with the antibiotic between 20 and investigated possible correlations between factors including gender, age, clinical signs such as ALT and alkaline phosphatase (ALP) activity, and adverse side effects. Cats were aged a mean of 6.8 years, and 47.6% were female or female-spayed. The most common indications for doxycycline were infections with hemotrophic mycoplasmas and respiratory tract infections, and the animals received doses ranging from 2 to 24 mg/kg per day. Overall, 12.8% of animals developed vomiting symptoms while receiving doxycycline therapy and the risk for vomiting increased 5.35-fold if gastric protectants and/or antiemetics were given alongside the antibiotic. Diarrhea developed in 10.9% of cats during therapy, with male cats having 4.07 times the risk for this side effect compared with their female counterparts. Applies to doxycycline: oral capsule, oral capsule extended release, oral powder for suspension, oral syrup, oral tablet, oral tablet delayed release Along with its needed effects, doxycycline may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Some side effects of doxycycline may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Applies to doxycycline: injectable powder for injection, oral capsule, oral delayed release capsule, oral delayed release tablet, oral kit, oral powder for reconstitution, oral syrup, oral tablet, oral and topical kit Very common (10% or more): Headache (up to 26%) Common (1% to 10%): Sinus headache Rare (0.01% to 0.1%): Bulging fontanels (in infants), benign intracranial hypertension (pseudotumor cerebri [symptoms include blurred vision, scotomata, diplopia]), tinnitus Frequency not reported: Hypoesthesia, increased intracranial pressure, paresthesia, somnolence, stupor, taste loss, drowsiness, amnesia, paresthesias of body areas exposed to sunlight, phrenic nerve paralysis after sclerotherapy Postmarketing reports: Pseudotumor cerebri, headache, dizziness Benign intracranial hypertension resulting in permanent loss of vision has been reported. A 70-year-old female patient with no significant medical history suddenly developed a severe headache followed by vomiting about 15 minutes after the initial dose of this drug. Can you buy citalopram in spain Prednisone coughing A typical doxycycline dose for treating bacterial feline upper respiratory problems is 2 mg per pound of body weight given twice per day. While this is fairly. Doxycycline for Cats is an antibiotic that is proven very effective for treating infections and diseases like Lyme disease, Chlamydia, Rocky Mountain spotted fever and suchBut the most common side effects faced by some cats are nausea and vomiting. These are some things you should take care of Doxycycline is a broad-spectrum antibiotic in the tetracycline class that's sometimes prescribed for this purpose in cats. VetInfo The Side Effects of Doxycycline for Cats. About the Author. Eric Mohrman has been a freelance writer since 2007, focusing on travel, food and lifestyle stories. If your vet diagnoses your kitty with a bacterial upper respiratory infection, an antibiotic is an important part of treatment. Doxycycline is a broad-spectrum antibiotic in the tetracycline class that's sometimes prescribed for this purpose in cats. It kills off the bacteria causing the problem, reducing symptoms along the way. Antibiotics are the main course of treatment for a bacterial infection, including those affecting the upper respiratory tract. Your vet prescribes doxycycline if he believes your pet's infection is caused by a susceptible bacteria. Your kitty's symptoms are probably mostly in her nose and throat. They'll gradually improve as the bacteria is eliminated. Doxycycline for dogs is an antibiotic from the tetracyclines family. The original members of this broad-spectrum antibiotic group include tetracycline and oxytetracycline. Doxycycline, however, is a more modern drug with fewer side effects and a higher safety margin. These features tend to make doxycycline the medication of choice when a tetracycline antibiotic is indicated. This means that it stops the bacteria from reproducing, rather than kills bacteria outright. This may seem an academic point, but it has important implications for treatment. Prior treatment with a bacteriostat antibiotic such as doxycycline, can reduce the effectiveness of other antibiotics should they be needed. Therefore, your veterinarian will want to be certain that doxycycline is the right medication for the job and the bacterial infection will respond. Doxycycline side effects in cats Doxycycline VCA Animal Hospital, Doxycycline 50mg dosage for cats/kittens UTI - Side Ciprofloxacin ophthalmic solution dosageWhere can i buy valtrex onlineWhere to buy ciprofloxacin hclMetoprolol 100 mg side effects Learn about the potential side effects of doxycycline. Includes common and rare side effects information for consumers and healthcare professionals. Along with its needed effects, doxycycline may cause some unwanted effects. Although not all of these side effects may occur, if they do occur. Doxycycline Side Effects in Detail -. Doxycycline for Cats with Upper Respiratory Problems -. Doxycycline - Pet Rescue Rx.. The most common side effects of Doxycycline's use in cats are vomiting and nausea. These side effects can often be avoided by giving the medication with food, or on a full stomach. However, if the symptoms persist, your cat may be having an allergic reaction. The most common side effects of Doxycycline's use in cats are vomiting and nausea. These side effects can often be avoided by giving the medication with food. Find patient medical information for Doxycycline Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.