Ozempic Blindness Lawsuits: What You Should Know GLP 1 drugs like Ozempic and Wegovy have been linked to NAION, a rare eye condition that can cause sudden, permanent vision loss. Lawsuits claim Ozempic and Wegovy increase risk of thyroid cancer. Use of GLP 1 RA for 1 3 years was associated with increased risk of all thyroid cancer (adjusted hazard ratio [HR] 1.58, 95% CI 1.27 1.95) Do GLP 1 Injections Make You Feel Tired? The Family Chemist If you're trying to prevent pregnancy, it's important to be aware that some GLP 1 medications can decrease the effectiveness of oral birth control pills .