What happens is that the TSH is immediately affected by the T3 in the medication. 4-Way Cold Tabs. _____ Report to the Endo Center at _____ 60 minutes before your scheduled procedure time How to Take Thyroid Medication: 10 Steps (with Pictures) - wikiHow discuss. If you and your doctor decide to change the timing of your medication, it's important to monitor your progress. Methimazole. Medication can be taken 4 hours before examination with little sips of water. Thyroid medication should be taken on an empty stomach, around the same time each day. What to eat: You must not eat any foods, suck candy, or chew gum until AFTER the colonoscopy is over. Drugs.com. Thyroid medication After taking your medications, nothing by mouth, EVEN WATER, 3 hours before your procedure time or else your procedure WILL be cancelled! There is some research, though, that suggests it may be better to take your dose at bedtime. Mayo Clinic Healthcare expert: Artificial intelligence improves colonoscopy accuracy, Mayo Clinic Q and A: Advances in screening for colon cancer, Mayo Clinic Minute: The importance of cancer screenings for LGBTQ community, Ask the Mayo Mom: How and why endoscopy is used in children, Mayo Clinic Q and A: Polyps are possible culprits in colon cancer, AI reduces miss rate of precancerous polyps in colorectal cancer screening, Consumer Health: Colon polyps and colon cancer screening, Mayo Clinic Minute: What to know when colorectal cancer runs in the family, Mayo Clinic Minute: Breaking down colorectal cancer, Mayo Clinic Minute: How COVID-19 has affected cancer care, Mayo Clinic Minute: How to be healthier in 2022, Primary care clinicians adjust recommendations for colorectal cancer screening to accommodate patient needs and preferences, study finds, Mayo Clinic Minute: Prepare for colon cancer screening with confidence, Bowel cancer: Mayo Clinic Healthcare expert describes role hard-to-see polyps play in cancer risk, Mayo Clinic Q and A: Colorectal cancer screening remains important, Colorectal cancer cases rising in younger adults, screenings are down, Sharing Mayo Clinic: Celebrating 5 years cancer-free after colon cancer, Updated screening guidelines for colorectal cancer. I have a colonoscopy scheduled in 5 days and was diagnosed with a UTI. They also noted that a high-fat, large American-style breakfast may impact absorption of the drug. She is taking very low doses (alternating days 6.25 and 12.5 mcg) and it is controlling her tsh, t3 and t4 are great and prolactin is now in normal range as well. I can't be the only one getting a colonoscopy after a TT. Avoid ibuprofen (Advil) 7 days prior. On the day of your test, take these medications with water at least 2 hours before your test.