Skip to Main Content
Please enable JavaScript in your browser for better use of the website!
Need Help? Call
1-800-862-8282
| Mon–Fri: 8 AM–5 PM PT | Sat: 6 AM–12 PM PT
Dogs
Cats
More Pets
Pet Pharmacy
Flea & Tick
Discover
Sales & Deals
Search...
0
•
$0
View cart
US ($)
Afghanistan (؋)
Åland Islands (€)
Albania (L)
Algeria (د.ج)
Andorra (€)
Angola ($)
Anguilla ($)
Antigua & Barbuda ($)
Argentina ($)
Armenia (դր.)
Aruba (ƒ)
Ascension Island (£)
Australia ($)
Austria (€)
Azerbaijan (₼)
Bahamas ($)
Bahrain ($)
Bangladesh (৳)
Barbados ($)
Belarus ($)
Belgium (€)
Belize ($)
Benin (Fr)
Bermuda ($)
Bhutan ($)
Bolivia (Bs.)
Bosnia & Herzegovina (КМ)
Botswana (P)
Brazil ($)
British Indian Ocean Territory ($)
British Virgin Islands ($)
Brunei ($)
Bulgaria (€)
Burkina Faso (Fr)
Burundi (Fr)
Cambodia (៛)
Cameroon (CFA)
Canada ($)
Cape Verde ($)
Caribbean Netherlands ($)
Cayman Islands ($)
Central African Republic (CFA)
Chad (CFA)
Chile ($)
China (¥)
Christmas Island ($)
Cocos (Keeling) Islands ($)
Colombia ($)
Comoros (Fr)
Congo - Brazzaville (CFA)
Congo - Kinshasa (Fr)
Cook Islands ($)
Costa Rica (₡)
Côte d’Ivoire (Fr)
Croatia (€)
Curaçao (ƒ)
Cyprus (€)
Czechia (Kč)
Denmark (kr.)
Djibouti (Fdj)
Dominica ($)
Dominican Republic ($)
Ecuador ($)
Egypt (ج.م)
El Salvador ($)
Equatorial Guinea (CFA)
Eritrea ($)
Estonia (€)
Eswatini ($)
Ethiopia (Br)
Falkland Islands (£)
Faroe Islands (kr.)
Fiji ($)
Finland (€)
France (€)
French Guiana (€)
French Polynesia (Fr)
French Southern Territories (€)
Gabon (Fr)
Gambia (D)
Georgia ($)
Germany (€)
Ghana ($)
Gibraltar (£)
Greece (€)
Greenland (kr.)
Grenada ($)
Guadeloupe (€)
Guatemala (Q)
Guernsey (£)
Guinea (Fr)
Guinea-Bissau (Fr)
Guyana ($)
Haiti ($)
Honduras (L)
Hong Kong SAR ($)
Hungary (Ft)
Iceland (kr)
India (₹)
Indonesia (Rp)
Iraq ($)
Ireland (€)
Isle of Man (£)
Israel (₪)
Italy (€)
Jamaica ($)
Japan (¥)
Jersey ($)
Jordan ($)
Kazakhstan (₸)
Kenya (KSh)
Kiribati ($)
Kosovo (€)
Kuwait ($)
Kyrgyzstan (som)
Laos (₭)
Latvia (€)
Lebanon (ل.ل)
Lesotho ($)
Liberia ($)
Libya ($)
Liechtenstein (CHF)
Lithuania (€)
Luxembourg (€)
Macao SAR (P)
Madagascar ($)
Malawi (MK)
Malaysia (RM)
Maldives (MVR)
Mali (Fr)
Malta (€)
Martinique (€)
Mauritania ($)
Mauritius (₨)
Mayotte (€)
Mexico ($)
Moldova (L)
Monaco (€)
Mongolia (₮)
Montenegro (€)
Montserrat ($)
Morocco (د.م.)
Mozambique ($)
Myanmar (Burma) (K)
Namibia ($)
Nauru ($)
Nepal (Rs.)
Netherlands (€)
New Caledonia (Fr)
New Zealand ($)
Nicaragua (C$)
Niger (Fr)
Nigeria (₦)
Niue ($)
Norfolk Island ($)
North Macedonia (ден)
Norway ($)
Oman ($)
Pakistan (₨)
Palestinian Territories (₪)
Panama ($)
Papua New Guinea (K)
Paraguay (₲)
Peru (S/)
Philippines (₱)
Pitcairn Islands ($)
Poland (zł)
Portugal (€)
Qatar (ر.ق)
Réunion (€)
Romania (Lei)
Russia ($)
Rwanda (FRw)
Samoa (T)
San Marino (€)
São Tomé & Príncipe (Db)
Saudi Arabia (ر.س)
Senegal (Fr)
Serbia (РСД)
Seychelles ($)
Sierra Leone (Le)
Singapore ($)
Sint Maarten (ƒ)
Slovakia (€)
Slovenia (€)
Solomon Islands ($)
Somalia ($)
South Africa ($)
South Georgia & South Sandwich Islands (£)
South Korea (₩)
South Sudan ($)
Spain (€)
Sri Lanka (₨)
St. Barthélemy (€)
St. Helena (£)
St. Kitts & Nevis ($)
St. Lucia ($)
St. Martin (€)
St. Pierre & Miquelon (€)
St. Vincent & Grenadines ($)
Sudan ($)
Suriname ($)
Svalbard & Jan Mayen ($)
Sweden (kr)
Switzerland (CHF)
Taiwan ($)
Tajikistan (ЅМ)
Tanzania (Sh)
Thailand (฿)
Timor-Leste ($)
Togo (Fr)
Tokelau ($)
Tonga (T$)
Trinidad & Tobago ($)
Tristan da Cunha (£)
Tunisia ($)
Türkiye ($)
Turkmenistan ($)
Turks & Caicos Islands ($)
Tuvalu ($)
U.S. Outlying Islands ($)
Uganda (USh)
Ukraine (₴)
United Arab Emirates (د.إ)
United Kingdom (£)
United States ($)
Uruguay ($U)
Uzbekistan (so'm)
Vanuatu (Vt)
Vatican City (€)
Venezuela ($)
Vietnam (₫)
Wallis & Futuna (Fr)
Western Sahara (د.م.)
Yemen (﷼)
Zambia ($)
Zimbabwe ($)
Sign In
0
Log in
Create an Account
Dogs
Food
Dry Food
Wet Food
Freeze-Dried Food
Small Breed Food
Puppy Food
Senior Food
Sensitive Stomach Food
Grain-Free Food
Prescription Food
Shop All Food
Treats
Training Treats
Dental Chews
Pill Pockets & Wraps
Functional Treats
Jerky Treats
Soft & Chewy Treats
Crunchy Treats & Biscuits
Bones, Bully Sticks & Natural Chews
Freeze-Dried Treats
Shop All Treats
Health Essentials
Flea & Tick
Dewormers
Probiotics
Calming & Anxiety Aids
Dental Care
Skin, Coat & Wound Care
Hot Spot & Itch Relief
Ear Care
Eye Care
Shop All Health Essentials
Supplements
Hip & Joint
Digestive & Probiotic
Immune & Allergy
Kidney & Bladder
Heart & Liver
Senior Support
Breeding & Puppy Support
Daily Nutrition
Multi-Vitamins
Shop All Supplements
Accessories
Collars, Harnesses & Leashes
Bowls & Feeders
Beds & Furniture
Training & Behavior Supplies
Travel Accessories
Clothing & Apparel
Shop All Accessories
Grooming
Brushes & Combs
Shampoos & Conditioners
Sprays & Wipes
Waterless & No-Rinse
Dog Paw & Nail Care
Grooming Tools
Shop All Grooming
Toys
Chew Toys
Fetch Toys
Interactive Toys
Tug & Pull Toys
Plush & Soft Toys
Treat Dispensing Toys
Shop All Toys
Shop All Dog Products
Cats
Food
Wet Food
Dry Food
Freeze-Dried Food
Kitten Food
Senior Food
Sensitive Stomach Food
Grain-Free Food
Prescription Food
Shop All Food
Treats
Dental Treats
Lickable Treats
Soft & Chewy Treats
Crunchy Treats
Freeze-Dried Treats
Functional Treats
Pill Pockets & Wraps
Catnip & Cat Grass
Shop All Treats
Health Essentials
Flea & Tick
Dewormers
Probiotics
Calming & Anxiety Aids
Dental Care
Hot Spot & Itch Relief
Ear Care
Eye Care
Shop All Health Essentials
Supplements
Kidney & Bladder
Hip & Joint
Heart & Liver
Immune & Allergy
Laxatives & Hairball
Breeding & Kitten Support
Daily Nutrition
Multi-Vitamins
Shop All Supplements
Accessories
Litter & Litter Boxes
Scratchers
Bowls & Feeders
Beds, Trees & Condos
Training & Behavior Supplies
Gates & Travel
Shop All Accessories
Grooming
Brushes & Combs
Shampoo & Conditioners
Sprays & Wipes
Waterless & No-Rinse
Paw & Nail Care
Grooming Tools
Shop All Grooming
Toys
Teasers & Wands
Chase Toys & Balls
Interactive Toys
Catnip Toys
Plush & Soft Toys
Tunnels
Shop All Toys
Shop All Cat Products
More Pets
Horse
Feed & Treats
Supplements & Vitamins
Health Essentials
Grooming
Pest Control
Shop All Horse Products
Fish
Medication & Supplements
Food
Tank Filters & Media
Tank Water Care & Treatments
Tank Décor & Accessories
Shop All Fish Products
Bird
Food
Treats
Health Essentials
Cleaning & Waste Control
Toys
Shop All Bird Products
Reptile
Food
Treats
Health Essentials
Lighting Supplies
Décor & Accessories
Shop All Reptile Products
Small Pet
Food
Treats
Bedding & Litter
Health Essentials
Toys
Shop All Small Pet Products
Farm Animal
Chicken Supplies
Cow Supplies
Goat Supplies
Sheep Supplies
Pig Supplies
Shop All Farm Animal Products
Pet Pharmacy
Dog Medication
Antibiotics
Vaccines
Flea & Tick
Heartworm Prevention
Arthritis & Anti-Inflammations
Allergy & Antihistamines
Digestive Tract, Liver & Pancreas
Thyroid & Hormone
Diabetes & Insulin
Shop All Dog Medication
Cat Medication
Antibiotics
Vaccines
Flea & Tick
Heartworm Prevention
Dewormers
Kidney & Urinary Tract
Digestive Tract, Liver & Pancreas
Thyroid & Hormone
Diabetes & Insulin
Shop All Cat Medication
Horse Medication
Antibiotics
Vaccines
Wound Care
Arthritis & Anti-Inflammations
Asthma & Respiratory
Allergy & Antihistamines
Digestive Tract, Liver & Pancreas
Thyroid & Hormone
Anti-Fungal
Shop All Horse Medication
Farm Animal Medication
Antibiotics
Vaccines
Estrus & Luteolytic
Disinfectants & Antiseptics
Shop All Farm Animal Medication
Flea & Tick
Dog Medications
Dog Preventives
Cat Medications
Cat Preventives
Home & Yard Treatment
Shop All Flea & Tick
Discover
Pet Food & Nutrition
Toys & Enrichment
Health & Supplements
Reptile Supplies
Equine & Livestock
Cat Litter & Hygiene
Pet Accessories
Veterinary & Medical
Specialty & Niche
Sales & Deals
Hardy Picks - Exclusive Deals
Save 30% on Seresto Collars
Shop All Sales & Deals
Update store currency
Afghanistan (؋) AFN
Åland Islands (€) EUR
Albania (L) ALL
Algeria (د.ج) DZD
Andorra (€) EUR
Angola ($) USD
Anguilla ($) XCD
Antigua & Barbuda ($) XCD
Argentina ($) USD
Armenia (դր.) AMD
Aruba (ƒ) AWG
Ascension Island (£) SHP
Australia ($) AUD
Austria (€) EUR
Azerbaijan (₼) AZN
Bahamas ($) BSD
Bahrain ($) USD
Bangladesh (৳) BDT
Barbados ($) BBD
Belarus ($) USD
Belgium (€) EUR
Belize ($) BZD
Benin (Fr) XOF
Bermuda ($) USD
Bhutan ($) USD
Bolivia (Bs.) BOB
Bosnia & Herzegovina (КМ) BAM
Botswana (P) BWP
Brazil ($) USD
British Indian Ocean Territory ($) USD
British Virgin Islands ($) USD
Brunei ($) BND
Bulgaria (€) EUR
Burkina Faso (Fr) XOF
Burundi (Fr) BIF
Cambodia (៛) KHR
Cameroon (CFA) XAF
Canada ($) CAD
Cape Verde ($) CVE
Caribbean Netherlands ($) USD
Cayman Islands ($) KYD
Central African Republic (CFA) XAF
Chad (CFA) XAF
Chile ($) USD
China (¥) CNY
Christmas Island ($) AUD
Cocos (Keeling) Islands ($) AUD
Colombia ($) USD
Comoros (Fr) KMF
Congo - Brazzaville (CFA) XAF
Congo - Kinshasa (Fr) CDF
Cook Islands ($) NZD
Costa Rica (₡) CRC
Côte d’Ivoire (Fr) XOF
Croatia (€) EUR
Curaçao (ƒ) ANG
Cyprus (€) EUR
Czechia (Kč) CZK
Denmark (kr.) DKK
Djibouti (Fdj) DJF
Dominica ($) XCD
Dominican Republic ($) DOP
Ecuador ($) USD
Egypt (ج.م) EGP
El Salvador ($) USD
Equatorial Guinea (CFA) XAF
Eritrea ($) USD
Estonia (€) EUR
Eswatini ($) USD
Ethiopia (Br) ETB
Falkland Islands (£) FKP
Faroe Islands (kr.) DKK
Fiji ($) FJD
Finland (€) EUR
France (€) EUR
French Guiana (€) EUR
French Polynesia (Fr) XPF
French Southern Territories (€) EUR
Gabon (Fr) XOF
Gambia (D) GMD
Georgia ($) USD
Germany (€) EUR
Ghana ($) USD
Gibraltar (£) GBP
Greece (€) EUR
Greenland (kr.) DKK
Grenada ($) XCD
Guadeloupe (€) EUR
Guatemala (Q) GTQ
Guernsey (£) GBP
Guinea (Fr) GNF
Guinea-Bissau (Fr) XOF
Guyana ($) GYD
Haiti ($) USD
Honduras (L) HNL
Hong Kong SAR ($) HKD
Hungary (Ft) HUF
Iceland (kr) ISK
India (₹) INR
Indonesia (Rp) IDR
Iraq ($) USD
Ireland (€) EUR
Isle of Man (£) GBP
Israel (₪) ILS
Italy (€) EUR
Jamaica ($) JMD
Japan (¥) JPY
Jersey ($) USD
Jordan ($) USD
Kazakhstan (₸) KZT
Kenya (KSh) KES
Kiribati ($) USD
Kosovo (€) EUR
Kuwait ($) USD
Kyrgyzstan (som) KGS
Laos (₭) LAK
Latvia (€) EUR
Lebanon (ل.ل) LBP
Lesotho ($) USD
Liberia ($) USD
Libya ($) USD
Liechtenstein (CHF) CHF
Lithuania (€) EUR
Luxembourg (€) EUR
Macao SAR (P) MOP
Madagascar ($) USD
Malawi (MK) MWK
Malaysia (RM) MYR
Maldives (MVR) MVR
Mali (Fr) XOF
Malta (€) EUR
Martinique (€) EUR
Mauritania ($) USD
Mauritius (₨) MUR
Mayotte (€) EUR
Mexico ($) USD
Moldova (L) MDL
Monaco (€) EUR
Mongolia (₮) MNT
Montenegro (€) EUR
Montserrat ($) XCD
Morocco (د.م.) MAD
Mozambique ($) USD
Myanmar (Burma) (K) MMK
Namibia ($) USD
Nauru ($) AUD
Nepal (Rs.) NPR
Netherlands (€) EUR
New Caledonia (Fr) XPF
New Zealand ($) NZD
Nicaragua (C$) NIO
Niger (Fr) XOF
Nigeria (₦) NGN
Niue ($) NZD
Norfolk Island ($) AUD
North Macedonia (ден) MKD
Norway ($) USD
Oman ($) USD
Pakistan (₨) PKR
Palestinian Territories (₪) ILS
Panama ($) USD
Papua New Guinea (K) PGK
Paraguay (₲) PYG
Peru (S/) PEN
Philippines (₱) PHP
Pitcairn Islands ($) NZD
Poland (zł) PLN
Portugal (€) EUR
Qatar (ر.ق) QAR
Réunion (€) EUR
Romania (Lei) RON
Russia ($) USD
Rwanda (FRw) RWF
Samoa (T) WST
San Marino (€) EUR
São Tomé & Príncipe (Db) STD
Saudi Arabia (ر.س) SAR
Senegal (Fr) XOF
Serbia (РСД) RSD
Seychelles ($) USD
Sierra Leone (Le) SLL
Singapore ($) SGD
Sint Maarten (ƒ) ANG
Slovakia (€) EUR
Slovenia (€) EUR
Solomon Islands ($) SBD
Somalia ($) USD
South Africa ($) USD
South Georgia & South Sandwich Islands (£) GBP
South Korea (₩) KRW
South Sudan ($) USD
Spain (€) EUR
Sri Lanka (₨) LKR
St. Barthélemy (€) EUR
St. Helena (£) SHP
St. Kitts & Nevis ($) XCD
St. Lucia ($) XCD
St. Martin (€) EUR
St. Pierre & Miquelon (€) EUR
St. Vincent & Grenadines ($) XCD
Sudan ($) USD
Suriname ($) USD
Svalbard & Jan Mayen ($) USD
Sweden (kr) SEK
Switzerland (CHF) CHF
Taiwan ($) TWD
Tajikistan (ЅМ) TJS
Tanzania (Sh) TZS
Thailand (฿) THB
Timor-Leste ($) USD
Togo (Fr) XOF
Tokelau ($) NZD
Tonga (T$) TOP
Trinidad & Tobago ($) TTD
Tristan da Cunha (£) GBP
Tunisia ($) USD
Türkiye ($) USD
Turkmenistan ($) USD
Turks & Caicos Islands ($) USD
Tuvalu ($) AUD
U.S. Outlying Islands ($) USD
Uganda (USh) UGX
Ukraine (₴) UAH
United Arab Emirates (د.إ) AED
United Kingdom (£) GBP
United States ($) USD
Uruguay ($U) UYU
Uzbekistan (so'm) UZS
Vanuatu (Vt) VUV
Vatican City (€) EUR
Venezuela ($) USD
Vietnam (₫) VND
Wallis & Futuna (Fr) XPF
Western Sahara (د.م.) MAD
Yemen (﷼) YER
Zambia ($) USD
Zimbabwe ($) USD
💊 Pharmacy Savings: 15% Off Select Rx Meds | Shop Now
Cat
Home
Cat
(1)
Skip to Main Content
Sort + Filter
Show
12
24
36
48
Sort
Best Selling
Featured
New Arrivals
Price: Low to High
Price: High to Low
Name: A → Z
Name: Z → A
Tomlyn Immune Support L-Lysine Powder For Cats, 3.5-oz
Tomlyn
$23.03
$18.43
Save 20% today, 10% off on every renewal.
Add to Cart
