If you're buying your pet prescriptions directly from your veterinarian, you're probably paying way too much. The profit margins on popular drugs like Advantix, Frontline, GlycoFlex or Program are massive, meaning you're paying a lot more than you should.

There is a solution - you can purchase pet medications online, through the mail or over the phone. By purchasing directly from the supplier or pet pharmacies, you can earn major discounts and save a lot of money.

But, is it a good idea? How do you find a trusted pharmacy? What happens if you require a prescription? For the answers to these questions and more, read on.

Where can I buy cheaper medications for my pet?

There are scores of companies throughout the United States selling pet prescriptions either online or over the phone. To find a quality seller, try to use a retailer that's recommended by either your veterinarian or friends. Also, look for a seller that's based in the U.S. or Canada and has high standards when it comes to checking for prescriptions.

What if I'm buying a drug that needs a prescription?

Typically, you will either scan and email or fax in your prescription for your veterinarian. Alternatively, some sites allow you to enter your vet's name, practice and phone number - and they will call your veterinarian directly to approve the prescription.

If your veterinarian is averse to transferring your prescription to an online or phone provider, remind them that it is your choice and it's important that you be able to purchase affordable pet medications. Some veterinarians will even match low, online prices, while others simply provide you with the prescription.

How do I know I'm getting quality drugs?

Again, look for sites that sell FDA-approved or EPA-approved, brand name drugs - the same ones that are sold in your veterinarian's office. Don't buy from an out-of-country provider that's not monitored by federal regulations, and stick to providers that are committed to quality pet care.

What if I need the prescription urgently?

If your pet needs medication right now, then you should purchase your drugs directly from the veterinarian. There's no point in jeopardizing your pet's health to save a few dollars. However, if your pet requires ongoing joint pain medications or heartworm drugs, buying online is a great option.

Compare Prices at Destination RX.Com or Froogle.Com

Try sites like DestinationRX.Com or Google's Froogle.com to compare the prices of brand-name medications at multiple sites. Just type in the name of your prescription, like Cosequin or Sentinel, and you'll get back a full list of retailers selling your prescription, along with prices.