--- product_id: 8179501 title: "PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz" brand: "prn" price: "€ 0.79" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.hr/products/8179501-prn-pharmacal-duralactin-feline-l-lysine-paste-supports-joint-respiratory store_origin: HR region: Croatia --- # Natural chicken flavor Supports feline health 32.5mL of goodness PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz **Brand:** prn **Price:** € 0.79 **Availability:** βœ… In Stock ## Summary > 🐾 Purr-fect health in a paste! ## Quick Answers - **What is this?** PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz by prn - **How much does it cost?** € 0.79 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/8179501-prn-pharmacal-duralactin-feline-l-lysine-paste-supports-joint-respiratory) ## Best For - prn enthusiasts ## Why This Product - Trusted prn brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Joint Joy:** Promotes joint health, keeping your cat active and playful. - β€’ **Breathe Easy:** Supports respiratory health for your feline friend. - β€’ **Sore No More:** Helps manage chronic soreness for a happier, healthier life. - β€’ **Trusted Since '78:** Decades of dedication to pet health and quality. - β€’ **Flavorful Wellness:** Delicious chicken flavor that cats love, making health a treat. ## Overview PRN Pharmacal Duralactin Feline L-Lysine Paste is a specially formulated supplement designed to support the respiratory, ocular, and joint health of cats and kittens. This natural chicken-flavored paste not only helps manage chronic soreness but also ensures your furry companion enjoys every dose. With a commitment to quality since 1978, this product is a trusted choice for pet owners looking to enhance their cat's well-being. ## Description Duralactin Feline L-lysine Paste for cats and kittens helps support respiratory and ocular health while managing chronic soreness that can damage healthy tissues. In an easy-to-use, dial-dose-syringe, this natural chicken-flavor paste contains Microlactin, an exclusive dried milk protein concentrate derived from hyperimmunized cows. Microlactin appears to block cytokines which help manage neutrophil participation to support joint health, mobility, and overall wellness.* Duralactin products also support overall normal activity and wellness. Dosage guidelines can be found on the product label. Dosing directions provided are for guidance only. Give 2.5mL directly or with food twice a day. Kittens may be given 1.25mL twice a day. This product contains the following per 1/2 teaspoon (2.5 mL): 250mg L-Lysine, 200mg Microlactin, 162mg omega-6 Fatty Acids, and 72.5mg omega-3 Fatty Acids. See product label for other ingredients. PRN Pharmacal began in 1978, fueled by the belief that the veterinary community needed a company to service their unmet pharmaceutical needs. Under the highest quality and rigor of Current Good Manufacturing Practices (cGMP) and standards, we strive to provide a wide range of products for the enhancement of animal health. We are dedicated to further niche products and drug therapies that address overlooked areas of pet and animal health so that your furry friends can continue to thrive. Our products include a variety of solutions designed to make animals’ lives easier and healthier. From the management of skin irritation to the treatment of separation angst, we are committed to improving animals' health and quality of life. Review: A Blessing is a Blessing!!! - When a product is a blessing, it is a blessing - and this, if you have cats susceptible to respiratory issues, is a true blessing! One of my Five (5) "Babies", Glenn, when I adopted him going on 2 years ago, was near-death with Pneumonia (3 weeks of IV fluids, force feeding, 3 antibiotics and Lysine powder!). Luckily, he survived, but he has an immunity issue that makes him he extremely prone to respiratory infections. I used the prescribed Lysine powder for the first 6 months after he got better and decided to stop using it because he was starting to get "persnickety" about eating his food with it mixed in. Within TWO weeks, he was sick again, sneezing and wheezing. I went back to the powder, but soon had to dissolve it in water and syringe-inject it into his mouth at every meal. NOT FUN! Glenn was beginning to hate me and being strongly against long-term antibiotic use and resistance, I was fearing that I was going to have a cat who either hated me or I had to fight every single day. About 6 months ago, after stopping forcing the dissolved powder into his mouth (my arms can take only so many scratches!), he was sick again. I decided to do some research and found Duralactin. Reading up on it, I kept seeing reviews stating that cats love the taste and having Lysine assist in his recovery every single time since his adoption, WITHOUT antibiotics, I decided to try it. THE ABSOLUTE BEST THING I EVER COULD HAVE DONE! At night, when I do my bedtime routine, Glenn comes running into the bathroom and bugs me until I dial him a dose. I put it down towards him and he "paws" the injector to his mouth and all I have to do is shoot it in! See the picture!!! He thinks it is a treat! Since purchasing, he has not been sick again. Without the fighting him to take the Lysine, my mind is a lot more at ease. Per my Vet, the Lysine boosts his immunity and keeps him healthy, so as long as this is made, I will purchase it. Although, it is getting a little expensive for me . . .because his brother, Buggsie, now wants it everyday, too!!!!!!!!! They really do think it is a treat!!!!! *smiling*. Review: Wonderful product that really helps, we WILL buy again, and, WILL be a staple for our Cats! - I wish I hadn't lost my tube of this, I am ordering MORE! Our kitten had a sudden skin problem, losing fur, around her eye and under her chin, and, her ears were affected, and, her one paw. I read that it could be 'Feline Demodectic mange (caused by Demodex cati or Demode x gator) as this seems to be something that can happen with some Kittens, and, runs in families. We were waiting for our regular Vet that was booked up during the holidays. I tried another treatment that was supposed to be useful, 'Sulfur', and, first found some of that at a store in the form of a hair treatment for humans, as a cream, and, it really helped, so I knew that was progress. Sulfur can be found in dandruff treatments. Next I ordered a Sulfur for animal treatment from desertcart that was stronger, and, worked even better. This all was helping but I still had to be concerned with the Kittens Autoimmune system, and, so I read about how helpful Duralactin Feline L-Lysine could be and very safe. In between time, the Vet's Office confirmed both treatments as safe. The kitten got much better quickly, and, by the time of the Vet appointment is was nearly healed. The Vet assured us it wasn't Mange though, but ringworm, and, the Sulfur and Lysine were still the treatments she would have used for that. Sparkles didn't require anything else, and got a lot better. The Lysine was recommended to continue for a while, and, it would never hurt our other Cat Horsey either! Both Cats are healthy months later. This tube of Duralactin Feline L-Lysine, 32.5mL ...has so much in it, you just dial the small amount you want, and, we used only about .5 mil for the kitten and bigger cat, in their food, and, the dial locks in place, so you can squeeze all you want out, without emptying the rest of the tube, I think it would last normally a good six months, if you wanted to use it daily just for regular feline maintenance health. The las photo is Sparkles Healthy afterwards, in fact, that bit in her eye in last picture, is not the same thing, just very end of healing, she is completely clear now! ## Features - Comprehensive Feline Care: Duralactin Feline L-Lysine Paste supports respiratory health in cats and features an easy-to-use dial-dose syringe and a tasty chicken flavor - Targeted Respiratory Support: This L-lysine paste supports respiratory and eye health in cats and kittens, featuring MicroLactin and omega-3 fatty acids to support healthy tissue - MicroLactin Science: Each serving contains 200 mg of MicroLactin dried milk protein, a supplement cats use to help support a normal inflammatory response for long-term mobility and joint health - Kitten & Adult Care: These cat wellness tablets support joint care, muscle strength and overall feline health as a trusted joint health supplement - About PRN Pharmacal: PRN Pharmacal provides animal health products in areas of veterinary medicine that are largely underserved to help support animal health and quality of life ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000M4ZVOE | | Allergen Information | Gluten | | Best Sellers Rank | #31,470 in Pet Supplies ( See Top 100 in Pet Supplies ) #34 in Cat Hip & Joint Care | | Brand | PRN | | Brand Name | PRN | | Customer Reviews | 4.2 out of 5 stars 2,218 Reviews | | Flavor | Flavorless | | Global Trade Identification Number | 00685687040800 | | Included Components | Feline L-lysine Syringe - 32.5 mL | | Item Form | Gel | | Item Weight | 2.08 Ounces | | Manufacturer | PRN Pharmacal | | Target Species | Cat | | UPC | 685687040800 802698677041 | | Unit Count | 1.105 Fluid Ounces | | Warranty Description | Manufacturer Warranty not Available | ## Product Details - **Allergen Information:** Gluten - **Brand:** PRN - **Flavor:** Flavorless - **Item Form:** Gel - **Item Weight:** 2.08 Ounces ## Images ![PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz - Image 1](https://m.media-amazon.com/images/I/51WuleHw2UL.jpg) ![PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz - Image 2](https://m.media-amazon.com/images/I/61g65u0ufhL.jpg) ![PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz - Image 3](https://m.media-amazon.com/images/I/71XbRH8EX9L.jpg) ![PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz - Image 4](https://m.media-amazon.com/images/I/61CV-OkZ3NL.jpg) ![PRN Pharmacal Duralactin Feline L-Lysine Paste - Supports Joint, Respiratory & Eye Health Supplement for Cats - Paste Formula - 1 fl oz - Image 5](https://m.media-amazon.com/images/I/611REkC7TtL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How many come in a package?** A: One in a package. I had ordered 12 and the box came with 12 individually wrapped dispensers. **Q: lately having plunger problems w/these! has quality if tubes changed? bad lot of tubes? different manufacturer of tubes? anyone else?** A: I have had three orders all bad. FIrst one had spoiled product and ring was in the wrong place on the plunger. Second order the same problem with the ring. I ordered these from another company due to price and ordered my third from Amazon. Same issue, bad product, ring in the wrong spot on all tubes. There used to be an expiration date on the tubes, now there is a DOM with a date. I think this may mean Date of Manufacture but it is not at all like what I am used to. Switching to the Lysine treats. So far, so good. **Q: How long does it take to become effective?** A: I find that after giving it to my cat for 2-3 days, I notice an improvement. But I have no idea if that's the norm. When she was really bad with an upper respiratory issue after surgery, it took a little longer. Maybe the whole syringe, or so. But markedly improved after that. The gel is a miracle, in my book! **Q: doe it need refrigeration?** A: No, it doesn't need to be refrigerated. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A Blessing is a Blessing!!! *by M***. on October 12, 2016* When a product is a blessing, it is a blessing - and this, if you have cats susceptible to respiratory issues, is a true blessing! One of my Five (5) "Babies", Glenn, when I adopted him going on 2 years ago, was near-death with Pneumonia (3 weeks of IV fluids, force feeding, 3 antibiotics and Lysine powder!). Luckily, he survived, but he has an immunity issue that makes him he extremely prone to respiratory infections. I used the prescribed Lysine powder for the first 6 months after he got better and decided to stop using it because he was starting to get "persnickety" about eating his food with it mixed in. Within TWO weeks, he was sick again, sneezing and wheezing. I went back to the powder, but soon had to dissolve it in water and syringe-inject it into his mouth at every meal. NOT FUN! Glenn was beginning to hate me and being strongly against long-term antibiotic use and resistance, I was fearing that I was going to have a cat who either hated me or I had to fight every single day. About 6 months ago, after stopping forcing the dissolved powder into his mouth (my arms can take only so many scratches!), he was sick again. I decided to do some research and found Duralactin. Reading up on it, I kept seeing reviews stating that cats love the taste and having Lysine assist in his recovery every single time since his adoption, WITHOUT antibiotics, I decided to try it. THE ABSOLUTE BEST THING I EVER COULD HAVE DONE! At night, when I do my bedtime routine, Glenn comes running into the bathroom and bugs me until I dial him a dose. I put it down towards him and he "paws" the injector to his mouth and all I have to do is shoot it in! See the picture!!! He thinks it is a treat! Since purchasing, he has not been sick again. Without the fighting him to take the Lysine, my mind is a lot more at ease. Per my Vet, the Lysine boosts his immunity and keeps him healthy, so as long as this is made, I will purchase it. Although, it is getting a little expensive for me . . .because his brother, Buggsie, now wants it everyday, too!!!!!!!!! They really do think it is a treat!!!!! *smiling*. ### ⭐⭐⭐⭐⭐ Wonderful product that really helps, we WILL buy again, and, WILL be a staple for our Cats! *by S***Y on February 20, 2016* I wish I hadn't lost my tube of this, I am ordering MORE! Our kitten had a sudden skin problem, losing fur, around her eye and under her chin, and, her ears were affected, and, her one paw. I read that it could be 'Feline Demodectic mange (caused by Demodex cati or Demode x gator) as this seems to be something that can happen with some Kittens, and, runs in families. We were waiting for our regular Vet that was booked up during the holidays. I tried another treatment that was supposed to be useful, 'Sulfur', and, first found some of that at a store in the form of a hair treatment for humans, as a cream, and, it really helped, so I knew that was progress. Sulfur can be found in dandruff treatments. Next I ordered a Sulfur for animal treatment from Amazon that was stronger, and, worked even better. This all was helping but I still had to be concerned with the Kittens Autoimmune system, and, so I read about how helpful Duralactin Feline L-Lysine could be and very safe. In between time, the Vet's Office confirmed both treatments as safe. The kitten got much better quickly, and, by the time of the Vet appointment is was nearly healed. The Vet assured us it wasn't Mange though, but ringworm, and, the Sulfur and Lysine were still the treatments she would have used for that. Sparkles didn't require anything else, and got a lot better. The Lysine was recommended to continue for a while, and, it would never hurt our other Cat Horsey either! Both Cats are healthy months later. This tube of Duralactin Feline L-Lysine, 32.5mL ...has so much in it, you just dial the small amount you want, and, we used only about .5 mil for the kitten and bigger cat, in their food, and, the dial locks in place, so you can squeeze all you want out, without emptying the rest of the tube, I think it would last normally a good six months, if you wanted to use it daily just for regular feline maintenance health. The las photo is Sparkles Healthy afterwards, in fact, that bit in her eye in last picture, is not the same thing, just very end of healing, she is completely clear now! ### ⭐⭐⭐⭐ Great product if they'd fill the tube like its suppose to be *by M***P on September 29, 2025* Was purchased for my sisters cat a lot of the tubes weren't completely full you had to turn the dial too far before anything would come out. It would have been a great purchase had the tubes been full and lasted like they were suppose too. What little was in there actually helped NyKyra (cat) hopefully by now they started filling the tubes cause we decided to go to another brand that lasted the amount of time it was suppose. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/8179501-prn-pharmacal-duralactin-feline-l-lysine-paste-supports-joint-respiratory](https://www.desertcart.hr/products/8179501-prn-pharmacal-duralactin-feline-l-lysine-paste-supports-joint-respiratory) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-23*