Increases serous mucus production and stimulates ciliary activity; activates lysosomal enzymes that break down mucopolysaccharide fibers in mucus, reducing viscosity and facilitating expectoration
At a glance
Class
Mucolytic / Expectorant
Storage
Below 25°C, protect from light
Dosing
Productive cough, bronchitis, respiratory tract mucus
Max dose
30 mg/dose; 60 mg/day
Duration: 5–14 days
Productive cough, respiratory mucus
Max dose
8 mg/dose; 16 mg/day
Duration: 5–14 days
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →Safety
Adverse effects
Common
GI upset
Nausea
Increased bronchial secretions (initially)
Serious
Allergic reactions (rare)
Respiratory statusCough character and frequencyGI tolerance
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →Interactions
No documented interactions.
Brands
International
Bisolvon
Boehringer Ingelheim
Bromhexine Injection (Vet)
Various
India
Bisolvon
Boehringer Ingelheim India
FAQs
Frequently asked questions
›What is Bromhexine?
Bromhexine is a mucolytic / expectorant used in pets. Increases serous mucus production and stimulates ciliary activity; activates lysosomal enzymes that break down mucopolysaccharide fibers in mucus, reducing viscosity and facilitating expectoration
›What is Bromhexine used for in pets?
Bromhexine is used in veterinary medicine for: Productive cough, bronchitis, respiratory tract mucus; Productive cough, respiratory mucus.
›What is the Bromhexine dose for dogs?
For dogs, Bromhexine is typically dosed as follows — Productive cough, bronchitis, respiratory tract mucus: 0.5–2 mg/kg PO BID. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Bromhexine dose for cats?
For cats, Bromhexine is typically dosed as follows — Productive cough, respiratory mucus: 0.5–1 mg/kg PO BID. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What are the side effects of Bromhexine?
Common: GI upset, Nausea, Increased bronchial secretions (initially). Serious (call your vet immediately): Allergic reactions (rare).
›Does Bromhexine need a prescription?
Bromhexine is available over the counter. Even so, you should consult your veterinarian before giving any medication to your pet.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →References
CDSCO approvals (India) — 1
Levofloxacin +Bromhexine Oral Solution
M/S Venky's India Limited AHP Division, · Approved 03.01.2022
for treatment of sevre respiratory infections of the poultry caused by bacteria including mycoplasmosis infectious loryz
Source: CDSCO Veterinary Drug Approval Registry (1969–2026)
References
The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.
Textbooks & handbooks — 5
- Plumb's Veterinary Drug Handbook
- Withrow & MacEwen's Small Animal Clinical Oncology
- Merck Veterinary Manual
- NRC Nutrient Requirements of Dogs and Cats
- Veterinary Pharmacology and Therapeutics (Riviere & Papich)
Clinical guidelines & consensus — 4
- ASPCA Animal Poison Control Center Guidelines
- AAHA Diabetes Management Guidelines
- ASPCA Poison Control Guidelines
- RECOVER CPR Guidelines
Journals & peer-reviewed studies — 2
- EPIC Study (J Vet Intern Med 2016)
- JVIM FAT CAT Study
Regulatory & approvals — 1
- CDSCO Veterinary Drug Approval Registry (1969–2026)
Databases — 1
- Washington State University VCPL MDR1 Database