Side Effects of Doxycycline for Dogs Although dogs generally tolerate doxycycline well, it’s important to understand the possible side effects before giving your dog a new medication. Find patient medical information for Doxycycline on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings Doxycycline capsules, delayed-release capsules, delayed-release tablets, and tablets and Acticlate® Cap capsules are also used to prevent malaria and treat anthrax infection after possible exposure and other conditions as determined by your doctor. Doxycycline belongs to the class of medicines known as tetracycline antibiotics. Doxycycline hyclate and doxycycline monohydrate are different forms of the same antibiotic. But is one better? Read about the differences in side effects and more. Doxycycline hyclate is a synthetic oxytetracycline derivative. It has been used to eliminate Borrelia burgdorferi and Anaplasma phagocytophilum in rodent reservoirs and to eliminate Ixodes scapularis ticks [1]. Transfer your prescription for Doxycycline Hyc, 150 MG Delayed Release Tablet on Amazon Pharmacy. FREE SHIPPING for Prime members. Materials you'll need Most people will get 100 mg tablets of doxycycline hyclate if they have potentially been exposed to anthrax. You need these items to make doses of doxycycline for those who can't swallow pills: 1 doxycycline hyclate tablet (100 mg) 1 metal teaspoon 1 oral syringe or medicine spoon (if available) 2 small bowls 4 teaspoons (20mL) of drinking water Doxycycline works well. Know what Doxycycline Hyclate is used for, how to take it, and which side effects to expect when starting it. Doxycycline hyclate is an antibacterial drug synthetically derived from oxytetracycline, and is available as doxycycline hyclate (doxycycline hydrochloride hemiethanolate hemihydrate) capsules and tablets for oral administration. Doxycycline is a tetracycline antibiotic used to treat many different bacterial infections such as acne, urinary tract infections, intestinal infections, and others.