What is the brand name for Doxycycline?
The brand name for Doxycycline is Vibramycin.
PTCE Top 200 · #77
Doxycycline
Vibramycin
Doxycycline is the generic name for the brand-name drug Vibramycin. It is a tetracycline antibiotic used to treat bacterial infections, acne. On the PTCE Top 200 drug list, Doxycycline ranks #77 and is one of the most frequently tested infectious disease medications — commonly quizzed on its brand–generic pair, drug class, and key side effects.
| Generic name | Doxycycline |
|---|---|
| Brand name(s) | Vibramycin |
| Drug class | Tetracycline antibiotic |
| Class group | Infectious Disease |
| Common use | bacterial infections, acne |
| DEA schedule | Unscheduled |
| Availability | Prescription only (Rx) |
What is Doxycycline used for?
• Treatment of susceptible bacterial infections (e.g., acne, respiratory tract infections, tick-borne infections).
What drug class is Doxycycline?
Doxycycline is a Tetracycline antibiotic in the Infectious Disease group. Knowing the class is the fastest way to predict its uses, side effects, and the brand↔generic pairs the PTCE tests.
Common side effects of Doxycycline
- arrow_rightGI upset (nausea, diarrhea)
- arrow_rightPhotosensitivity
- arrow_rightEsophagitis (pill irritation)
- arrow_rightYeast infections
Major interactions
- arrow_rightAntacids/iron/calcium/magnesium bind and ↓ absorption (separate dosing)
- arrow_rightWarfarin: may ↑ INR/bleeding risk (monitor)
- arrow_rightIsotretinoin or other retinoids ↑ intracranial hypertension risk (rare)
- arrow_rightEnzyme-inducing anticonvulsants may ↓ doxycycline levels
Is Doxycycline a controlled substance?
No. Doxycycline is not a federally controlled substance (it is unscheduled by the DEA).
How to remember Doxycycline (PTCE mnemonic)
VIBRA-mycin VIBRAtes through bacteria — DOXY-cycline is a tetra-CYCLINE. 'Don't lie down (esophagitis), no SUN, no MILK/iron/Ca/Mg, no kids/pregnancy' (teeth).
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PTCE exam tip
Doxycycline is a tetracycline (-cycline) — avoid in pregnancy and young children (teeth staining); counsel on dairy/antacid spacing and sun sensitivity.
Doxycycline FAQ
What is Doxycycline used for?
Doxycycline is used to treat bacterial infections, acne. • Treatment of susceptible bacterial infections (e.g., acne, respiratory tract infections, tick-borne infections).
What drug class is Doxycycline?
Doxycycline is a Tetracycline antibiotic (Infectious Disease group).
Is Doxycycline a controlled substance?
No. Doxycycline is not a federally controlled substance (it is unscheduled by the DEA).
Related drugs in the Infectious Disease group
Drill Doxycycline the way the PTCE asks it
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Last reviewed June 25, 2026. Educational use only — not medical advice. Verify clinical specifics with your pharmacist or a current label source such as DailyMed. RxReflex is not affiliated with or endorsed by the Pharmacy Technician Certification Board (PTCB).