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Is Nightshade (Deadly) Toxic to Dogs?

☠️ ToxicSeverity: Severe
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.
Yes, deadly nightshade is severely toxic to dogs. Belladonna alkaloids in the sweet berries make this one of the most dangerous plants a dog can eat.

Also known as: Belladonna, Deadly Nightshade · Atropa belladonna

What makes it toxic

Atropine, scopolamine and hyoscyamine, anticholinergic alkaloids concentrated in berries and roots, which paralyze normal nerve and heart function.

Warning signs to watch for

Dilated pupils, dry sticky mouth, tachycardia, vomiting, staggering, agitation or extreme drowsiness, tremors and seizures within about an hour.

What to do if your dog eats it

Immediate emergency vet visit with a sample of the plant. Tell the vet the time of ingestion; anticholinergic poisoning has a narrow treatment window.

Common questions

Why would a dog eat deadly nightshade berries?

The ripe berries taste sweet, unlike many bitter toxic plants. That makes belladonna especially dangerous to foraging dogs and puppies.

How fast does belladonna poisoning show?

Usually within one hour, starting with dilated pupils and a racing heart. Any delay in treatment worsens the prognosis significantly.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals thaAloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain coSpider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk ofEaster Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal kiSago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untreBoston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to dogs. Chewing a frond will not poison your dog.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.