• They may contain ingredients not listed on the label. This includes ingredients like prescription drugs, possibly at doses exceeding maximum recommended amounts. Prescription drugs should be taken only under the supervision of a health professional because they may cause serious side effects. Using a product that contains ingredients that the consumer is not aware of increases the chance of dangerous allergies and interactions with other medications and foods.
• The label may indicate a dangerous ingredient or combination of ingredients. For example, it could list a drug that should be available only by prescription from a health care professional, or a combination of ingredients that Health Canada does not permit because of serious health risks.

• Stop using the products listed below. Consult your health care professional if you have used these products and have health concerns, and for advice on which health products are best for you and your family.
• Read product labels to verify that health products have been authorized for sale by Health Canada. Authorized health products have an eight-digit Drug Identification Number (DIN), Natural Product Number (NPN) or Homeopathic Drug Number (DIN-HM). You can also check if products have been authorized for sale by searching Health Canada’s Drug Product Database and Licensed Natural Health Product Database.
• Report any health product adverse events or complaints to Health Canada.
• See the additional information on buying health products safely in the helpful links below.

• Selling unauthorized health products in Canada is illegal.
• When Health Canada identifies unauthorized products that may pose serious health risks, Health Canada takes appropriate action to prevent further distribution and informs Canadians. This includes working with the Canada Border Services Agency to help prevent further importation of unauthorized products.

Cardarine (also known as GW501516 and GW1516), MK-677 and SR-9009 are not authorized in Canada for any use and may pose serious health risks. All clinical development activities to bring GW501516 to market were stopped when toxicities, including various cancers, were discovered following routine, long-term animal studies. The long-term effects in humans are unknown.

Selective Androgen Receptor Modulators (SARMs) are drugs that are not authorized in Canada for any use and have not been reviewed by Health Canada for safety, effectiveness and quality. The use of bodybuilding products that contain SARMs can pose serious health risks such as heart attack, stroke and liver damage. The long-term effects on the body are unknown. Examples include andarine, ostarine (MK 2866), ligandrol (LGD-4033) myostine (YK-11), and testolone (RAD-140).

Sildenafil is a prescription drug used to treat erectile dysfunction and should be used only under the supervision of a health care professional. It should not be used by individuals taking any kind of nitrate drug (e.g. nitroglycerine) as it can cause potentially life-threatening low blood pressure. Individuals with heart problems are at increased risk of cardiovascular side effects such as heart attack, stroke, chest pain, high blood pressure and abnormal heartbeat. Other possible side effects include headache, facial flushing, indigestion, dizziness, abnormal vision, and hearing loss. Desmethyl carbodenafil and dithiodesmethyl carbodenafil, and Hydroxythiohomosildenafil are unauthorized substances that are similar to sildenafil and may pose similar health risks.

Tadalafil is a prescription drug used to treat erectile dysfunction and should be used only under the supervision of a health care professional. It should not be used by individuals taking any kind of nitrate drug (e.g., nitroglycerine) since it can cause potentially life-threatening low blood pressure. Individuals with heart problems are at increased risk of cardiovascular side effects such as heart attack, stroke, chest pain, high blood pressure and abnormal heartbeat. Other possible side effects include headache, facial flushing, indigestion, dizziness, abnormal vision, and hearing loss.Aminotadalafil is an unauthorized substance that is similar to tadalafil and may pose similar health risks.

• Buying drugs over the Internet
• Adulteration of natural health products
• Risks of buying natural health products online
• The safe use of health products for weight loss