Doxycycline Hyclate
General Drug Information and Indications
Tetracycline antibiotic for susceptible bacterial and intracellular infections; Lyme disease, anaplasmosis, ehrlichiosis, respiratory infections, Potomac horse fever.
Tetracycline antibiotic. Mechanism: reversibly binds 30S ribosomal subunit → inhibits bacterial protein synthesis (bacteriostatic). Lipophilic; excellent tissue and intracellular penetration for tick-borne and intracellular pathogens. Fecal elimination; can be used with renal dysfunction. Do not combine with dairy or multivalent cations (chelation reduces absorption).
Key information
Administer with food and water — esophageal stricture risk (especially cats). Store at room temperature; protect from light. Photosensitizing — limit sun exposure. Drug interactions: antacids, dairy, iron products impair absorption (separate by 2+ hours). Do not use in neonates (bone/tooth effects). Hepatotoxic at high doses.
How to Give this Medication
Oral tablets/capsules: Administer orally. May be given with food to improve compliance and reduce GI upset. Administer with food to reduce GI adverse effects. Follow immediately with water. Cats: after pilling, follow with 6 mL of water via syringe and observe swallowing — esophageal stricture risk. Suspension: Shake well before each use. IV: dilute and infuse over 1 hr — do not rapid infuse. Store at room temperature; protect from light.
If a dose is missed
Administer as soon as you remember. If it is almost time for the next scheduled dose, skip the missed dose and resume the normal schedule. Never double up doses to make up for a missed one. Always give with food and water, and complete the full course of antibiotics.
Side Effects
GI: esophageal stricture (cats — critical: always give with water/food and ensure swallowing; consider doxycycline hyclate tablets or pilling technique), vomiting, anorexia. Hepatotoxicity (rare). Photosensitivity. Tooth/bone developmental effects in young animals. Superinfection.
Precautions
For animals
Cats: esophageal stricture risk — always give with water and food; use hyclate tablets when possible. Use with caution in pregnant animals. Avoid in neonates and young animals (bone/tooth discoloration). Avoid concurrent antacids, dairy, and multivalent cations. Monitor liver enzymes with prolonged use. with prolonged use.
For people handling this medication
Wash hands thoroughly with soap and water after handling. Avoid contact with eyes; if contact occurs, flush with water for 15 minutes and seek medical attention. Keep out of reach of children. If accidental ingestion occurs, contact Poison Control (1-800-222-1222). Tetracycline — Keep out of reach of children. Pregnant women and women of childbearing age should avoid contact. Avoid during pregnancy. Photosensitivity. Wash hands thoroughly with soap and water after handling. after handling.
Overdose
Contact your veterinarian immediately. Overdose causes GI signs, liver toxicity (at very high doses), and esophageal damage. Contact your veterinarian, a veterinary emergency clinic, or the ASPCA Animal Poison Control Center (888-426-4435) immediately. Do not induce vomiting unless specifically directed by a veterinary professional.
Doxycycline Hyclate dosage forms
| Product | Strength | Form | Size | Type |
|---|---|---|---|---|
| DOXYCYCLINE HYCLATE 1 GM/SCOOP POWDER | 1 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 1.25 GM/SCOOP POWDER | 1.25 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 100 MG/ML ORAL SUSPENSION - PER ML | 100 MG/ML | Oral Suspension | PER ML | Compound |
| DOXYCYCLINE HYCLATE 15 MG/ML ORAL SUSPENSION (FELINE) | 15 MG/ML | Oral Suspension | 1 | Compound |
| DOXYCYCLINE HYCLATE 2 GM/SCOOP POWDER | 2 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 2.5 GM/SCOOP POWDER | 2.5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 3 GM/SCOOP POWDER | 3 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 3.2 GM/SCOOP POWDER | 3.2 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 3.4 GM/SCOOP POWDER | 3.4 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 3.5 GM/SCOOP POWDER | 3.5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 3.6 GM/SCOOP POWDER | 3.6 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 300 MG/ML ORAL SUSPENSION - 120 ML | 300 MG/ML | Suspension | 120 ML | Compound |
| DOXYCYCLINE HYCLATE 300 MG/ML ORAL SUSPENSION - 300 ML | 300 MG/ML | Suspension | 300 ML | Compound |
| DOXYCYCLINE HYCLATE 300 MG/ML ORAL SUSPENSION - 480 ML | 300 MG/ML | Oral Suspension | 480 ML | Compound |
| DOXYCYCLINE HYCLATE 300MG/ML (UNSWEET) SUSPENSION | 300 MG/ML (UNSWEET) | Suspension | 1 | Compound |
| DOXYCYCLINE HYCLATE 35 MG/ML ORAL SUSPENSION (FELINE) | 35 MG/ML | Oral Suspension | 1 | Compound |
| DOXYCYCLINE HYCLATE 4 GM/SCOOP POWDER | 4 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 4.5 GM/SCOOP POWDER | 4.5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 5 GM/SCOOP POWDER | 5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 5.5 GM/SCOOP POWDER | 5.5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 5.6 GM/SCOOP POWDER | 5.6 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 5.7 GM/SCOOP POWDER | 5.7 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 50 MG/ML ORAL SUSPENSION (BACON) | 50 MG/ML | Oral Suspension | 1 · Bacon | Compound |
| DOXYCYCLINE HYCLATE 500 MG/SCOOP POWDER | 500 MG/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 6 GM/SCOOP POWDER | 6 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 6.25 GM/SCOOP POWDER | 6.25 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 6.5 GM/SCOOP POWDER | 6.5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 7 GM/SCOOP POWDER | 7 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 7.5 GM/SCOOP POWDER | 7.5 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 8 GM/SCOOP POWDER | 8 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCLINE HYCLATE 9 GM/SCOOP POWDER | 9 GM/SCOOP | Powder | 1 | Compound |
| DOXYCYCL HYC TAB 100MG | 100MG | Tablet | — | Commercial |
| DOXYCYCL HYC TAB 100MG | 100MG | Tablet | — | Commercial |
| DOXYCYCL HYC TAB 100MG (Viona) | 100MG | Tablet | — | Commercial |
| DOXYCYCLINE HYCLATE 100 MG TABLET (Hikma Phar) | 100 MG | Tablet | 1 | Commercial |
Sources
This information is provided for educational purposes and is not a substitute for advice from your veterinarian. Source: Merck Veterinary Manual (merckvetmanual.com); Plumb's Veterinary Drug Handbook (Plumb, D.C., app.plumbs.com)