Prescription Required

Eligible for free e-certification with purchase

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In Stock. Usually Ships in 2-3 weeks.

Shipping weight = 0.75 lb.

All medications are filled by Pet's Choice Pharmacy. More information. Can only be shipped in the United States.
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Product Summary:

Prescription items are NON-RETURNABLE and NON REFUNDABLE


Aminopenicillins, also called broadspectrum or ampicillin penicillins are used for the treatment of susceptible bacterial infections such as bite wounds, and bladder, upper respiratory, and oral infections in multiple species including dogs, cats, ferrets, and birds. They are generally not effective against Staphylococcal infections. Do NOT use ampicillin or amoxicillin in rabbits, guinea pigs, chinchillas, or hamsters since it will affect the normal bacteria in the gastrointestinal tract and possibly cause a fatal diarrhea. 

Dose and Administration:
Always follow the dosage instructions provided by your veterinarian. If you have difficulty giving the medication, contact your veterinarian. Ampicillin: For best absorption of ampicillin, give 1 hour prior to feeding or 2 hours after feeding. May be given with food if necessary to decrease side effects, such as vomiting. Amoxicillin: Oral amoxicillin is better absorbed from the gastrointestinal tract than ampicillin. Amoxicillin may be given with food. Reconstituted oral suspensions should be refrigerated and the remainder discarded in 14 days. Shake well before use. Ampicillin and amoxicillin must be given for at least 7-10 days for effectiveness; if given less than that, infections are likely to recur or become worse. Follow your veterinarian’s recommendations and use all of the medication prescribed. If you miss a dose, give it as soon as you remember. If it is almost time for the next dose, skip the one you missed and go back to the regular schedule. Do not give 2 doses at once. This medication should only be given to the pet for whom it was prescribed.

Possible Side Effects:
May see lack of appetite, drooling, vomiting, or diarrhea. Contact your veterinarian if you observe any of these effects in your pet. If your pet experiences an allergic reaction to the medication, signs may include facial swelling, hives, scratching, sudden onset of diarrhea, vomiting, shock, seizures, pale gums, cold limbs, or coma. If you observe any of these signs, contact your veterinarian immediately.

Not for use in animals hypersensitive (allergic) to penicillins or beta-lactam antibiotics such as cephalosporins. Aminopenicillins cross the placenta, although no detrimental results to fetuses have been reported. The safety of aminopenicillins in breeding, pregnant, or lactating animals (those nursing their young) has not been established. Use with caution in very small animals who may be dehydrated or have kidney or heart disorders.
Human Precautions:
People with hypersensitivities (allergies) to penicillins or beta-lactam antibiotics such as cephalosporins should not handle the aminopenicillins, since allergic reactions could occur just from contact. Drug, Food, and Test Interactions Consult your veterinarian before using ampicillin or amoxicillin with vitamins, supplements, bacteriostatic antibiotics (such as erythromycin or tetracyclines), or  anticoagulants (blood thinners, such as heparin or warfarin), since interactions may occur. Ampicillin may cause false-positive urine glucose results.
Signs of Toxicity/Overdose:
May see vomiting or diarrhea. Dogs on high doses or long-term use may show signs of incoordination (difficulty walking). If you know or suspect your pet has had an overdoes, or if you observe any of these signs in your pet, contact your veterinarian immediately.
Store at room temperature in a tight, light resistant childproof container. Once the oral suspension is reconstituted (the powder is mixed with water), store in the refrigerator and use within 14 days. 

Keep this and all other medications out of the reach of children and pets. 

Style Item Number Model Number UPC
50MG P00395 050 012029-50 087219012291
100MG P00395 100 012029-500-10 087219012314
Additional Information:

Please Note: 

This prescription product or therapeutic food is fulfilled by Pet’s Choice Pharmacy, Inc. A licensed pharmacy in all states.  We are only authorized to ship within the United States.  

To order prescription products or therapeutic foods must have an existing, valid veterinarian-client-patient relationship.  Prescription requests are subject to a Drug Utilization Review by a licensed pharmacist for patient safety. By law we can only accept a prescription faxed from your veterinarian or we must have the original prescription.

All prescription products (excluding therapeutic food) are FDA approved, or EPA licensed, to be sold in the US. Prescription products cannot be returned.  

Are we a licensed pharmacy?

The National Association of Boards of Pharmacy (NABP) has approved us as a Safe Site through its .pharmacy verified website program. We are not a licensed pharmacy; however, we are permitted to display pet medications on our site and have prescription orders fulfilled and delivered through our trusted partner, Pet’s Choice Pharmacy, an NABP .pharmacy verified website. This gives you a trusted and affordable alternative to purchase the medications your beloved pets need to maintain quality of life and overall health.

The .Pharmacy Verified program, prior to approval of domain registration, ensures that applicants meet all applicable Program Standards, which address regulatory standards including; to be licensed, registered, or hold appropriate permits where it is headquartered and where its customers reside, to protect patient medical and financial information and to have a clean disciplinary record.

To find out How to Fill your Pets Prescription click on More Information at the top. 

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Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.
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