Birth Control Pills for Dogs
Canine oral contraceptives are somewhat effective if given correctly, but there can be side-effects, some more serious than others. With that said, giving a dog birth control pills does seem like a safer alternative to putting a bitch through a spaying procedure.
Oral Contraceptives Currently Available for Dogs
There are currently two oral birth control products for dogs. Both are available only through prescription through your vet. You should carefully weigh your options and talk about all the risks and side effects of oral contraception versus spaying before you make a decision.
Cheque Drops Rx
According to Pet Education.com, Cheque Drops (Mibolerone) are an oral contraceptive that must be given to bitches on a daily basis for thirty days prior to coming into heat in order to be effective. The problem is that bitches seldom come in season like clockwork, so predicting when to start the thirty day dosage is next to impossible. This can lead to prolonged use of the medication, and a greater possibility of experiencing some of the numerous side-effects.
Cheque Drops have been known to cause:
- Infertility
- Liver damage
- Increased chance of vaginal infections
- Increased house wetting
- Body odor
- Skin problems
- Vaginal distortion
- Increased urge to ride other dogs
- Personality changes, usually increased aggression
- Vomiting
- Loss of appetite
- Weight loss
It should also be noted that veterinarians do not recommend using Cheque Drops until after a bitch has had her first full season.
Ovaban Rx
According to Drugs.com, Ovaban Rx (Megestrol acetate) is used to delay or stop heat cycles, as well as treat false pregnancies. It is generally considered slightly safer to use than Cheque Drops, but it can also produce side-effects, including:
- Increased risk for uterine infections
- Breast enlargement and possible milk production
- Temperament changes
- Increased appetite
Is Chemspay a Future Option in Canine Birth Control?
According to a 2011 report from USA Today.com, a product called Chemspay may be the future of canine birth control. Developed by Dr. Loretta Mayer, Chemspray tablets are designed to eliminate eggs in the ovaries, effectively sterilizing a bitch. The product is still undergoing testing and has yet to be used in FDA-approved trials, so there is no info available as yet about possible side effects. Dr. Mayer estimates it could be another 10 years before this product might become available on the market.
Risks of Contraception
As you can see, oral forms of canine contraceptive carry some sort of risk. However, surgical procedures such as spaying also carry the risk of post-operative infections. Also, some bitches do not react well to the anesthesia, and in rare cases, the bitch may die during or after the procedure. Whether you decide you and your pet have a need for birth control pills for dogs, liquid contraceptives, or surgical sterilization, take time to consult your veterinarian about all of the options, and let him/her help guide your choice.
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