tetrex
Tetrex (Tetracycline Phosphate Complex) is a medication used to treat Acne Vulgaris, Bartonella Infections, Borrelia Infections, Bronchitis.
Tetracycline Phosphate Complex · by Bristol
Key facts
- Active ingredient
- Tetracycline Phosphate Complex
- Form
- Capsule
- Strength
- Tetracycline Phosphate Complex EQ 250MG Hydrochloride · Tetracycline Phosphate Complex EQ 500MG Hydrochloride
- Type
- Prescription (Rx)
- Brand or generic
- Brand-name
- May treat
- acne vulgaris, bartonella infections, borrelia infections
- Manufacturer
- Bristol
- FDA application
- NDA050212
- Availability
- Discontinued (per FDA)
May treat (source: NIH RxClass)
- acne vulgaris
- bartonella infections
- borrelia infections
- bronchitis
- campylobacter infections
- chancroid
Dosage forms
Capsule
The forms currently marketed in the U.S., per the FDA National Drug Code Directory.
Ways to save
Ask for the generic
Same active ingredient, far cheaper. Is there a generic? →
Request a 90-day supply
Bulk fills usually lower the per-dose price vs monthly refills.
Use copay cards
Manufacturer copay cards & patient-assistance programs — especially for brand drugs.
Compare alternatives
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Frequently asked questions
- What does Tetrex treat?
- Tetrex (Tetracycline Phosphate Complex) may be used to treat acne vulgaris, bartonella infections, borrelia infections, bronchitis, campylobacter infections, chancroid, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.
- Is there a coupon or discount for Tetrex?
- pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Tetrex. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
- Who makes Tetrex?
- Tetrex is marketed by Bristol. You can see Bristol's full profile, rating, and other products on pharmaranks.
- Is Tetrex a brand-name or generic drug?
- Tetrex is a brand-name product with the active ingredient Tetracycline Phosphate Complex.
- Is Tetrex available over the counter?
- No. Tetrex is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
- What forms does Tetrex come in?
- Tetrex is currently marketed as capsule, per the FDA's National Drug Code Directory.
- Is Tetrex FDA-registered?
- Tetrex is on record with the U.S. FDA under application number NDA050212. You can verify this on its official FDA label.
Information is sourced from public FDA regulatory data. Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.
What people report to the FDA about TETRACYCLINE PHOSPHATE COMPLEX
The FDA Adverse Event Reporting System (FAERS) collects reports from patients and clinicians. It holds 2 reports naming TETRACYCLINE PHOSPHATE COMPLEX — the active ingredient in Tetrex, and the FDA flagged 50% of those reports as serious. The effects reported most often — leaving out reports about overdose, misuse or the condition being treated, which dominate the raw list for common medicines:
- chronic obstructive pulmonary disease1 reports
- drug administration error1 reports
- drug hypersensitivity1 reports
- feeling abnormal1 reports
- hypertension1 reports
- lumbar vertebral fracture1 reports
- spinal compression fracture1 reports
Read these as a signal, not a rate. A report does not mean TETRACYCLINE PHOSPHATE COMPLEX caused the effect — anyone can file one, and many describe people taking several medicines for several conditions. Crucially there is no denominator: FAERS does not record how many people took the drug, so these counts cannot be turned into “X% of patients” — a bigger number often just means a more widely used or more talked-about drug. Duplicates exist, and publicity drives reporting. For what is actually established, read the FDA label.
Source: openFDA drug/event (FAERS), retrieved September 26, 2026.
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