Educational Disclaimer: This chapter is part of the “101 – Learn Homeopathy” course on monkmodehealth and is intended for general knowledge only. Nothing written here constitutes medical advice, diagnosis, or treatment. Do not use this as a substitute for professional medical care. Always consult a qualified practitioner for health concerns. What you do with this knowledge is your personal choice and responsibility.

101 – Learn Homeopathy · Chapter 47 of 100

Drosera

The Remedy for Violent, Spasmodic Coughing

Source

Drosera rotundifolia (round-leaved sundew, a carnivorous plant)

Common potency

30C for acute use

Primary action

Violent, spasmodic, barking cough, including whooping-cough-type patterns

Forms available

Pellets, liquid dilutions

What Is Drosera?

Drosera, prepared from the sundew plant, is the leading traditional homeopathic remedy for violent, spasmodic, barking coughs, particularly those occurring in rapid, exhausting fits, and has a long traditional association with whooping-cough-type presentations.

The Three Keynotes You Must Know

Keynote 1: Violent, rapid coughing fits, often ending in gagging or vomiting

Drosera’s characteristic cough comes in rapid, forceful spasms that can be severe enough to cause gagging, retching, or vomiting by the end of the fit.

Keynote 2: Worse from lying down, and worse after midnight

The Drosera cough characteristically intensifies once the person lies down, and tends to worsen particularly after midnight, often disrupting sleep.

Keynote 3: A deep, barking, almost seal-like quality

The cough itself often has a distinctive deep, barking character, sometimes described as sounding like a seal’s bark, reflecting the intensity and depth of the spasm.

When to Reach for Drosera

A violent, barking cough that comes in rapid, exhausting fits
Coughing fits severe enough to end in gagging or vomiting
A cough that worsens noticeably upon lying down at night
Whooping-cough-type presentations (always alongside appropriate medical evaluation, given the seriousness of pertussis)
A cough triggered by talking, laughing, or cold air
Hoarseness accompanying a deep, barking cough
Persistent coughing that disrupts sleep, especially after midnight

Drosera Versus Spongia Tosta: Two Barking Cough Remedies Compared

Both Drosera and Spongia Tosta (Chapter 48) involve deep, barking coughs, but Spongia’s cough has a distinctive dry, sawing quality often associated with croup and tends to improve temporarily after eating or drinking something warm, while Drosera’s cough is defined by violent, rapid spasms ending in gagging, worse specifically from lying down and after midnight.

Potency and Dosage

Situation	Suggested potency	Frequency
Acute violent coughing fits	30C	Every few hours during the day, and before bed if nighttime cough is prominent
Whooping-cough-type cough	30C	In consultation with a pediatrician, given the seriousness of pertussis
Breathing difficulty, blue lips, or cough lasting more than a week or two	—	Seek medical evaluation promptly

A Real-World Scenario

Consider a child with a cough that comes in sudden, rapid, barking fits so intense that it ends with them gagging and occasionally bringing up a little mucus or food, and whose parents notice the coughing gets distinctly worse the moment the child lies down for bed. This pattern of violent, gagging cough fits worse from lying down is a classic prompt to consider Drosera.

⚠ What Drosera Will Not Do

Drosera is not a substitute for prompt medical evaluation of a severe, persistent cough, especially in infants and young children, or any cough accompanied by high fever, breathing difficulty, or a whooping sound on inhalation, which may indicate pertussis and requires medical diagnosis and treatment.

Up next — Chapter 48

Spongia Tosta — The Remedy for Dry, Barking Croup Cough

Read Chapter 48 →

Why This Belongs in Every Home

Violent nighttime coughing fits are distressing for the whole household, and Drosera’s specific pattern recognition (violent, gagging, worse lying down) makes it one of the more useful cough remedies to know well.