Doxycycline is a widely used antibiotic medication that is available in 100mg tablet form in Canada. It is primarily used to treat bacterial infections, including acne, rosacea, and urinary tract infections. The recommended dosage of Doxycycline is usually 200400 mg per day, divided into two or three smaller doses. For the treatment of acne, the recommended dose is typically 50100mg per day. For infections caused by sexually transmitted bacteria, the recommended dose is usually 200mg as one dose. It's important to note that Doxycycline should not be used in pregnant or breastfeeding women, children under the age of 8, or people with a history of liver disease. It can cause side effects such as nausea, diarrhea, and sun sensitivity. It's also important to mention that it's prescription medication and should only be taken under the guidance of a doctor. In conclusion, Doxycycline 100mg tablets are widely available in Canada and can be used to treat various types of bacterial infections. It's important to consult with a doctor before starting any new medication.