DL-Methionine is used to acidify urine in both dogs and cats. Urinary acidifiers are used when the pH of the urine is too high, causing struvite stone and crystal formation. It may help in dissolving struvite stones with time and preventing stone recurrence. DL-Methionine is available as a flavored tablet in 200 mg or 500 mg strengths and as an oral gel.
WHAT IS THIS DRUG?
- A urinary acidifier used to prevent and treat certain types of kidney and bladder stones
- A prescription is required for this medication
- Given by mouth
REASONS FOR PRESCRIBING:
- Used to acidify the urine of dogs and cats
- May be useful in preventing the return of certain bladder stones
- Animals with liver, pancreatic or kidney disease
- Animals with metabolic acidosis, or those with urate kidney or bladder stones
- Not for use in animals less than 1 year of age
- Not intended for pregnant or nursing animals
- Animals on an urine acidifying diet unless directed by your veterinarian
- Animals with a known hypersensitivity or allergy to this DL-Methionine should not take this medication
Read and follow the prescription label carefully.
Give the exact amount prescribed by your veterinarian and only as often as directed.
Product directions vary from product to product. Always follow your veterinarian’s instructions.
Drug dosage should be adjusted to maintain urine pH consistently below 6.6.
Not intended for use in kittens.
Give this medication for as long as your veterinarian directs. Do not skip doses or stop giving the medication without consulting your veterinarian.
Your veterinarian will assess how this medication is working by your pet’s response. Your veterinarian will also routinely check urine pH values to ensure proper dosing.
Dose adjustments may be made based upon these results and an assessment of how your dog or cat is responding clinically.
Call ahead for refills.
Ideally, give medication at the same time(s) daily.
WHAT IF A DOSE IS MISSED?
If a dose is missed, give it as soon as you can. If it is time already for the next dose, skip the missed dose and go back to the normal schedule. Do not give two doses at the same time.
STORAGE AND WARNINGS:
DL-Methionine should be stored in a tight, light resistant childproof container in a cool, dry place at room temperature 15-30°C (59-86°F) away from heat and direct sunlight. Prevent from freezing.
Keep this and all medication out of reach of children and pets.
Call your physician immediately if you accidentally take this product.
POTENTIAL SIDE EFFECTS:
- May cause Heinz body anemia in cats
- Large doses may cause gastrointestinal upset when fed on an empty stomach, therefore give with food
- Side effects are generally mild and may include vomiting, loss of appetite and diarrhea
- If these symptoms persist or you notice anything else unusual, contact your veterinarian
CAN THIS DRUG BE GIVEN WITH OTHER DRUGS?
- Yes, but possible interactions may occur when giving DL-Methionine in conjunction with: amikacin, gentamicin and quinidine
- Drugs other than those listed may also interact with DL-Methionine
- Do not give new food or medications without first talking to your veterinarian
- If your pet experiences any unusual reactions when taking multiple medications, contact your veterinarian
Overdoses may result in life-threatening metabolic acidosis. Contact your veterinarian immediately if your pet receives more than the prescribed amount.
WHAT TO TELL/ASK A VETERINARIAN BEFORE GIVING MEDICATION?
Talk to your veterinarian about:
- When your pet will need to be rechecked
- What tests may need to be performed prior to and during treatment with this drug
- What are the risks and benefits of using this drug
- If your pet has experienced side-effects on other drugs/products
- If your pet has experienced digestive upset now or ever
- If your pet has experienced liver or kidney disease now or ever
- If your pet has experienced any other medical problems or allergies now or ever
- All medicines and supplements that you are giving your pet or plan to give your pet, including those you can get without a prescription. Your veterinarian may want to check that all of your pet’s medications can be given together.
- If your pet is pregnant, nursing or if you plan to breed your pet
WHAT ELSE SHOULD I KNOW?
Notify your veterinarian if your animal’s condition does not improve or worsens despite this treatment.
As with all prescribed medicines, DL-Methionine should only be given to the pet for which it was prescribed.
It should be given only for the condition for which it was prescribed.
This is just a summary of information about DL-Methionine. If you have any questions or concerns about DL-Methionine or for the condition it was prescribed, please contact your veterinarian.