Cat safety · the medicine box

Medicines that poison cats — the Indian medicine box

Half a Crocin, a dab of hair-regrowth lotion on your pillow, the dog's flea drops: medicines that are fine for people and dogs can kill a cat. Here's what's in an Indian medicine box, how cats meet it and what to do.

Deadly to cats — never these

Paracetamol, minoxidil hair lotion and a dog's permethrin flea drops have killed cats in tiny amounts — usually when someone meant well. If it happened, go to a vet now. Don't wait for signs.

What to do now

25 medicines & pet products6 shelves Checked

If it already happened

  1. Call your vet or go to a 24×7 pet clinic now — say what, when and roughly how much.
  2. Take the plant, the packet or a clear photo with you.
  3. Don't make your cat vomit at home unless a vet tells you to.
Everything to do now

Ranked from deadly to mild

Shelf by shelf, from pain killers to balms

Each shelf is ranked from deadly to mild. Search by medicine, brand or Hindi name, or tap a level.

Pain & fever 4

Crocin, Dolo, Combiflam, Disprin — the strip in every kitchen drawer.

Hair, skin & creams 6

Hair-regrowth lotions, pimple gels, steroid and pain creams — the ones a cat licks off your skin.

Flea, tick & worm products 4

Dog spot-ons, sprays, shampoos and collars — fine for dogs, dangerous on cats.

Mind, sleep & focus 3

Antidepressants, sleeping pills, ADHD and anxiety tablets.

Heart, BP & diabetes 4

Blood-pressure, heart and sugar tablets — one dropped pill is enough.

Balms, oils & cold remedies 4

Vicks, Amrutanjan, Iodex, essential oils, cough syrups and nasal drops.

Your medicine, their tongue

Using it yourself? Keep your cat safe

Most cats are poisoned by medicine that was never meant for them — licked off a hand, a pillow or the floor.

  • Hair-regrowth lotion (minoxidil)

    Let it dry fully, wash your hands, and keep your cat off your pillow and bed while you use it. Wipe spills with a tissue and bin it where your cat can't reach.

    Minoxidil (hair-regrowth lotions and foams)
  • Pain gels and creams

    Rub them in where your cat won't lick — cats groom the people they love — and wash your hands after.

    Pain-relief gels, sprays and creams
  • A tablet on the floor

    Count the strip and find the one that fell before your cat does. Keep pills in a closed box, not loose on a table.

    Paracetamol
  • A dog and a cat at home

    Use only cat-labelled products on your cat. After the dog's spot-on, keep them apart until it is fully dry, as the label says.

    Dog flea and tick spot-ons (permethrin)
  • Balms, oils and diffusers

    Keep jars and bottles shut and high up. No diffuser in the room your cat sleeps in, and never oil on a cat.

    Essential oils
  • Handbags and bedside tables

    Cats explore bags and drawers. Keep every medicine in a cupboard that shuts.

Kind habits, unkind results

Myth or fact? Kind habits that hurt

Nearly every medicine poisoning starts with someone trying to help. No judgement — just what the vets say.

  • Myth“It's only a lotion on my head — the cat can't be poisoned by it”

    FactMost poisoned cats in the ASPCA series got it from the owner's own use — licking skin or a pillowcase, or a spill — and 8 of the 62 cats that fell ill died (Tater et al. 2021).

    Minoxidil (hair-regrowth lotions and foams)
  • Myth“Give the cat a Crocin for fever”

    FactParacetamol is highly toxic to cats — 'even a small dose is enough to cause severe illness' (International Cat Care). A feverish cat needs a vet, never a human tablet.

    Paracetamol
  • Myth“A few drops from the dog's pipette is a safe cat dose”

    FactOwners often assume a smaller amount of a dog product is safe — it isn't: 'Never use a dog product on a cat' (International Cat Care). Of 286 UK cases, almost every cat fell ill and about one in ten died (Sutton et al. 2007).

    Dog flea and tick spot-ons (permethrin)
  • Myth“It's just a skin cream — a lick won't matter”

    FactPet Poison Helpline calls topical 5-FU one of the most dangerous pet toxins: 'small amounts – even a lick for some pets – are highly toxic' (Pet Poison Helpline).

    5-fluorouracil (5-FU) skin cream
  • Myth“Gels stay on the skin, so they can't hurt a pet”

    FactIn the USA, cats in two homes fell ill or died after their owners used a painkiller cream only on their own neck or feet — 'it is not known exactly how the cats became exposed' (US FDA).

    Pain-relief gels, sprays and creams
  • Myth“A small piece of a painkiller will help a limping cat”

    FactCats are 'especially susceptible' to ibuprofen and 'very susceptible' to aspirin (Merck). A limping cat needs a vet and cat-safe pain relief.

    Ibuprofen and aspirin
  • Myth“Mefenamic acid is mild — it's even given to children”

    FactHuman NSAIDs 'can be extremely dangerous to pets' and should never be given without a vet (Pet Poison Helpline). Children's syrups are not cat medicines.

    Diclofenac, naproxen and mefenamic acid tablets
  • Myth“A little Vicks will clear a cat's blocked nose”

    FactCamphor is absorbed through the skin and 'should never be applied to dogs or cats' (Pet Poison Helpline). A sneezing, blocked-up cat needs a vet.

    Vapour rubs and pain balms
  • Myth“Natural oils are safe home remedies for cats”

    Fact'Natural' isn't safe: plant-oil flea products harmed cats even when used as labelled (Genovese et al. 2012), and concentrated oils 'should never be directly applied to pets' (Merck).

    Essential oils
  • Myth“A bit of a cold tablet will help a sneezing cat”

    FactMost cold tablets mix paracetamol with a decongestant, and 'even small amounts of these formulations can be poisonous' (VCA). Cat flu needs a vet.

    Cold and flu tablets and decongestants
  • Myth“A calming tablet for people will settle an anxious cat”

    FactAntidepressant ingestions are among the top accidental pet poisonings, with signs from vomiting to seizures (Pet Poison Helpline). Vets prescribe cat-specific anxiety medicines — never share yours.

    Antidepressants (SSRIs and venlafaxine)
  • Myth“A dab of mouth-ulcer gel will soothe a cat's sore gums”

    FactA cat collapsed with breathing trouble within 20 minutes of a benzocaine cream going on its skin (JAVMA 1988). Sore gums in a cat need a vet.

    Numbing gels and sprays (benzocaine, lidocaine)
  • Myth“If the tick wash works on the dog, it's fine for the cat”

    Fact'Amitraz should NOT be used on cats' (Pet Poison Helpline); Merck also lists cats among the animals it is not recommended for.

    Amitraz tick washes, dips and collars
  • Myth“Tick sprays are just insect killers — they can't hurt a cat”

    FactSevere pyrethroid poisoning causes 'tremor, seizure, collapse, and death', and using a product meant for one species on another is a common cause (Pet Poison Helpline).

    Pyrethroid tick sprays, dips and shampoos
  • Myth“Ivermectin is safe for cats — vets use it”

    FactThe dose is everything: cats overdosed by mistake developed tremors, blindness and coma (Jourdan et al. 2015; Meekins et al. 2015). Only a vet can work out a cat dose.

    Ivermectin (human tablets and livestock dewormers)
  • Myth“My cat's vet prescribed amlodipine, so a human tablet is fine”

    FactVets do use these drugs in cats, but accidental overdose 'can result in severe, life-threatening poisoning' because the margin of safety is narrow (Pet Poison Helpline). Use only the cat's own prescription.

    Amlodipine and other calcium channel blockers
  • Myth“A sleeping pill will keep the cat calm on a train journey”

    FactSleep aids often have the opposite effect in pets — about half of dogs that eat them become agitated (Pet Poison Helpline) — and a zolpidem-poisoned cat was stuporous, disoriented and severely wobbly (Czopowicz et al. 2010).

    Sleeping pills and anxiety tablets

Think your cat ate something poisonous?

  1. Call your vet or go to a 24×7 pet clinic now — say what, when and roughly how much.
  2. Take the plant, the packet or a clear photo with you.
  3. Don't make your cat vomit at home unless a vet tells you to.
  4. No milk, oil, salt water or home remedies.
  5. A cat that looks fine can still be poisoned — lilies, onion, garlic and rat poison act late.

India has no pet poison helpline yet — the US lines serve North America. Near Noida and can't find an open vet? Message us and we'll help you find one. We can't give medical advice.

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Good to know

Medicine questions, answered

Still unsure? Ask your vet. Near Noida and need help finding one? Message us — we'll help you find a vet, never play one.

Can I give my cat paracetamol (Crocin, Dolo) for fever?

Never. Cats can't break paracetamol down, so even a small amount can destroy red blood cells and the liver. A feverish cat needs a vet — and no human tablet, ever.

Is minoxidil hair lotion (Mintop, Tugain) dangerous for cats?

Yes — very. Cats have died after licking a little off an owner's skin, hair or pillow, or a spill from the bottle. If you use it, let it dry, wash your hands and keep your cat off your bed. If your cat may have licked some, go to a vet now, even if they seem fine.

Can I use my dog's flea medicine on my cat?

No. Many dog spot-ons contain permethrin, which causes tremors, seizures and death in cats — even a small amount. Use only cat-labelled products from your vet.

Is Vicks or a pain balm safe around cats?

Keep them away. Balms carry camphor, menthol, eucalyptus or wintergreen oil, and cats react badly to all of them — from drooling and vomiting to seizures. Never rub one on a cat, and don't let your cat lick it off you.

Can I give my cat a human cough syrup or cold tablet?

No. Many contain paracetamol, decongestants or sweeteners that are dangerous for cats. A sneezing, coughing cat needs a vet — cat flu is common and treatable.

My cat licked a cream or chewed a tablet — what now?

Call your vet or go to a 24×7 clinic now and take the strip, tube or bottle with you. Don't make your cat vomit at home and don't wait for signs: many medicines act late.

Where these facts come from

Every medicine lists its own sources with links: the Merck Veterinary Manual, ASPCA, Pet Poison Helpline, International Cat Care, the US FDA's veterinary notices and peer-reviewed case reports — plus Indian brand names so you can recognise the strip or the bottle. There is no Indian poisoning data yet, so the order on each shelf is our judgement of harm × how often Indian cats meet it.

Facts last checked

General information for cat parents, not a diagnosis or a treatment plan. The facts come from ASPCA, Pet Poison Helpline, International Cat Care, the Merck Veterinary Manual and the other sources listed on every page — and we say so when the evidence comes from dogs or people. If your cat may have eaten something harmful, call your vet.

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