What is Doxy 100? Uses, warnings & side effects

Updated May 14, 2025  •  Published Dec 30, 2020

Doxy 100 overview

BRAND NAMES:

  • Doxy 100, Doxy 100 Novaplus, PremierPro Rx Doxy 100

Generic Names:

  • Doxycycline Hyclate

Uses:

  • Treats infections. This medicine is a tetracycline antibiotic.

Therapeutic Classes:

  • Antibiotic, Antimalarial, Antiprotozoal

Forms:

  • Injectable

How it’s taken:

  • By injection

What is Doxy 100 used for?

Doxycycline hyclate is an antibiotic used to treat bacterial and parasitic infections. Doxycycline hyclate belongs to a class of antibiotics called tetracyclines. Doxycycline hyclate is a generic drug also available under the trade names Doryx, Oracea, Monodox, Atridox, Morgidox, Vibra-Tabs, Alodox, Ocudox, Doxy, Acticlate, and Vibramycin. In the treatment of bacterial and parasitic infections, doxycycline hyclate use is common.

What form(s) does Doxy 100 come in?

  • Injectable

What are common Doxy 100 dosages?

  • Solution Reconstituted 100MG

How to take Doxy 100

  • Injection routeYour doctor will prescribe your dose and schedule. This medicine is given through a needle placed in a vein.

  • Injection routeA nurse or other health provider will give you this medicine.

  • Missed dose: Injection routeCall your doctor or pharmacist for instructions.

  • Injection routeYour doctor will prescribe your dose and schedule. This medicine is given through a needle placed in a vein.

  • Missed dose: Injection routeCall your doctor or pharmacist for instructions.

  • Injection routeA nurse or other health provider will give you this medicine.

What to do if you miss a dose of Doxy 100

Doxy 100 contraindications - Who shouldn't take Doxy 100?

  • This medicine is not right for everyone. You should not receive it if you had an allergic reaction to doxycycline or any tetracycline antibiotic, or if you are pregnant.

Doxy 100 warnings

  • Tell your doctor if you are breastfeeding, or if you have liver disease or lupus.

  • This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.

  • This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.

Doxy 100 interactions & what to avoid when taking Doxy 100

  • Some medicines can affect how doxycycline works. Tell your doctor if you are also using the following: PenicillinA blood thinner (such as warfarin)

  • This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.

  • This medicine may make your skin more sensitive to sunlight. Wear sunscreen. Do not use sunlamps or tanning beds.

Doxy 100 side effects - How does Doxy 100 make you feel?

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing

  • Blistering, peeling, red skin rash

  • Severe diarrhea that may be bloody, stomach cramps, fever

Less Serious Side Effects

  • Trouble swallowing

  • Mild diarrhea, nausea, vomiting, loss of appetite