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Rilexine Chewable Tablets (cephalexin)

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Starts $0.64 $0.43 per chewable tablet
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150 mg
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300 mg
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Product Info

What are Rilexine Chewable Tablets (cephalexin)?

Rilexine Chewable Tablets are recommended for the treatment of secondary superficial bacterial pyoderma of the skin in dogs caused by susceptible strains of Staphylococcus pseudintermedius. It also treats cutaneous infections in dogs, including skin fold pyoderma impetigo, folliculitis, furunculosis, and cellulitis, as well as urinary tract infections. Rilexine is FDA-approved and is available in 3 sizes of tablets, making it easier to give your pet the exact dose and prevent side effects associated with inaccurate dosing. Rilexine is a chewable tablet and is scored for accurate dosing. Rilexine Chewable Tablets are sold by the tablet and require a prescription from your veterinarian.




  • Effectively treats pyoderma in dogs
  • FDA-approved
  • Treats urinary tracts infections and bacterial infections of the skin
  • Comes in a tasty liver-flavored chewable tablet
  • Scored tablets for easy dosing
  • 3 different sizes of tablets for accurate dosing
  • Available in 150 mg, 300 mg and 600 mg
  • Sold per tablet

How do Rilexine Chewable Tablets work?

Rilexine Chewable Tablets treat superficial bacterial pyoderma, a bacterial infection on the skin commonly found in dogs more so than cats. Symptoms include lesions, itchiness, and pus-filled swelling on the skin. In some cases, pyoderma can cause hair loss. Rilexine works by inhibiting the nucleopeptide synthesis of the bacterial wall, thus leading to the destruction of bacteria.


Keep out of reach of children. For dogs Only. Do not use for humans. People with sensitivities to antimicrobials like penicillin should avoid handling.

Brand Name:

Rilexine (Cephalexin) Chewable Tablets

Generic Name:


What is the most important thing I should know about Rilexine Chewable Tablets?

Rilexine treats urinary tract infections and bacterial infections of the skin like skin fold pyoderma impetigo, folliculitis, furunculosis and cellulitis. It is for use in dogs only and requires a prescription from your veterinarian.

What should I discuss with my veterinarian before giving Rilexine Chewable Tablets?

Tell your veterinarian if your pet has ever had an allergic reaction to penicillin or to a cephalosporin. Tell your veterinarian if your pet has kidney disease, or a stomach or intestinal disease. Tell your veterinarian if your pet is pregnant or lactating.

How should Rilexine Chewable Tablets be given?

Give this medication exactly as directed by your veterinarian. Rilexine can be given with or without food. The recommended dose of Rilexine (cephalexin) tablets is 22 mg/kg (10 mg/lb) of the pet's body weight twice daily for 28 days.

What are the potential side effects of Rilexine Chewable Tablets?

Diarrhea and rarely antibiotic-associated colitis, nausea and vomiting, abdominal discomfort, headache allergic reactions including rashes, pruritus, urticaria, serum sickness-like reactions with rashes, fever and arthralgia, and anaphylaxis; erythema multiforme, toxic epidermal necrolysis reported disturbances in liver enzymes, transient hepatitis and cholestatic jaundice other side-effects reported include eosinophilia and blood disorders (including thrombocytopenia, leucopenia, agranulocytosis, aplastic anaemia and haemolytic anaemia) reversible interstitial nephritis, hyperactivity, nervousness, sleep disturbances, confusion, hypertonia, and dizziness. However, at the levels associated with casual exposure, these are unlikely in normal use.

What happens if I miss giving a dose of Rilexine Chewable Tablets?

Give the missed dose as soon as you remember. If it is almost time for the next dose, skip the dose you missed and give the next regularly scheduled dose. Do not give a double dose unless otherwise directed by your veterinarian.

What happens if I overdose my pet on Rilexine Chewable Tablets?

Seek emergency veterinary medical treatment.

What should I avoid while giving Rilexine Chewable Tablets to my pet?

Keep out of reach of children. Do not use in animals known to be hypersensitive to penicillin. Do not use in rabbits, guinea pigs, hamsters and gerbils. As with other antibiotics which are excreted mainly by the kidneys, unnecessary accumulation may occur in the body when renal function is impaired. In case of known renal insufficiency, the dose should be reduced. Keep out of reach of children. Do not handle or use extreme caution and proper precautions when handling this product if you know you are sensitized to it or are allergic to cephalexin, other cephalosporins, penicillin, or any other beta-lactam antibiotic or similar related medication. If you are unsure of a possible sensitivity please contact your doctor or pharmacist. Handle this product in a manner that enables you to avoid any exposure, taking all recommended precautions. Wash hands after use. If you develop symptoms following exposure such as skin rash you should seek medical advice and show the doctor this warning. Swelling of the face, lips or eyes or difficulty breathing are more serious symptoms and require urgent medical attention.

What other drugs will affect Rilexine Chewable Tablets?

Tell your veterinarian if your pet is allergic to penicillin antibiotics such as amoxicillin and ampicillin or cephalosporin antibiotics such as cephalexin and cefuroxime. Tell your veterinarian about all the medicines your pet takes, including prescription and non-prescription medicines, vitamins, and herbal supplements.

How to Use

Rilexine Chewable Tablets Directions:

  • Rilexine Chewable Tablets are used for the treatment of secondary superficial bacteria pyoderma in dogs caused by susceptible strains of Staphylococcus pseudintermedius.
  • It treats cutaneous infections in dogs, including skin fold pyoderma impetigo, folliculitis, furunculosis, cellulitis and urinary tract infections.
  • Always consult with your veterinarian about the appropriate dosage for your dog.
  • Tablets are chewable and scored for easy dosing.

Do not give to dogs with a known allergy to cephalexin or penicillin.

All Weights
The recommended dose is 22 mg/kg (10 mg/lb) of pet's body weight twice daily for 28 days.*Please ask your veterinarian for appropriate dosing
Do not use!
Do not use!

Store capsules at room temperature away from moisture or heat.


Rilexine Chewable Tablets Ingredients:

Rilexine 150 mg chewable tablets:
Active Ingredients
150 mg
Rilexine 300 mg chewable tablets:
Active Ingredients
300 mg
Rilexine 600 mg chewable tablets:
Active Ingredients
600 mg
Customer Reviews
Rilexine Chewable Tablets (cephalexin) is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from A good antibiotic Used this for a bacterial infection for our rottie which rendered her very lethargic and depressed. Within a day or two she displayed inprovement and by day three was wellness onto recovery. Temperature was 40 degrees Celsius prior to administration and by day three was within a healthy range. A good product and highly recommended.
Date published: 2017-01-17
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My dog has been taking Relaxine 300mg for over 3 weeks now and the doctor has advised the dose to be continued for another 10 days. is it harmful?

Asked by: mj
Does your dog have yeast? If so, I would add to this prescription, coconut oil, billions of multistrain probiotics, a 50/50 vinegar paw rinses several times a day and even rinse the coat in this. There is more to do to rid the dog of this, but my first goal would be to get and keep the gut in good condition because antibiotics will adversely affect the gut and make yeast harder to get rid of. I am No authority other than being through this and it is not fun, but is worth it. Also 0 sugar in diet. There are many good sites for natural yeast cures.
Answered by: Djb570
Date published: 2017-11-22

I don't need 150 can i get 30 tablets

Asked by: Pamela
The Rilexine is sold per tablet so you can choose the quantity. We have the medication available in 150mg , 300mg or 600mg. Currently however the 150mg & 600mg strength are out of stock as of 7/11/2017.
Answered by: Crystal PetMed Pro
Date published: 2017-07-12

What can happen to my cat if he ate one and a half of one? He is too noisy for his own good.

Asked by: ThomasCat
You should consult your veterinarian if your pet ingested more than the prescribed dose.
Answered by: Lisa M
Date published: 2016-11-10

Is it ok to give aspirin with this? My dog is going on 10 years old so it gets hard at times to get up and move around without noticing her legs shake a bit. The aspirin really helps (it's "dog aspirin") and puts the pep back into her step too

Asked by: Dea D
Yes, Aspirin is fine to give with Cephalexin.
Answered by: Christine
Date published: 2016-10-14

How long time is recommended my dog can take Rilexine?

My dog is a mutt (dog with no pedigree) He has a severe skin infection and he is taking Rilexine for about 3 weeks his weight is 70lbs so he takes 900mg, unfortunately his healing is slow and I worried about the time he will take the medicine. What is the recommended time to stop the treatment? Thanks for your Help.
Asked by: Vgomez
Speak to your veterinarian to determine the appropriate length of treatment. This may vary depending on the severity or location of the infection being treated.
Answered by: Cheryl-Pharmacist
Date published: 2014-11-24

my dog has been taking rilexine for sore nose, she has some loss of bladder control. is that possiable taking this med.

Asked by: minnie
My dog also has this issue since starting on these meds, she is usually very clean in the house but now she is has urinated in the house the evening after she started the tablets, plus the next two mornings and we are having to take her outside more often in the evening
Answered by: Lurcher owner
Date published: 2017-01-27

Is Kelfex another name for Rilexine

Asked by: chris
Keflex and Rilexine are both brand names for cephalexin. There are two differences: Rilexine is FDA approved for veterinary use and Keflex is not; Rilexine is a chewable tablet and Keflex comes as a capsule or suspension.
Answered by: Pharmacist Intern
Date published: 2013-10-23

Can Chewable Cephelexin be given down the throat? That's the only way my 16 yr. old dog will take pills (even chewable ones).

Asked by: duck
Please break the chewable tablet into several pieces and administer all of the pieces within the same time frame so your pet will receive the full dose.
Answered by: Lilli Pharmacist
Date published: 2013-10-22
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