It is very important that your doctor check you at regular visits for any problems or unwanted effects that may be caused by this medicine .
You should not use this medicine if you are pregnant. Using this medicine while you are pregnant can harm your unborn baby. Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using this medicine, tell your doctor right away. Do not breastfeed while you take this medicine .
Oral contraceptives (birth control pills) may not work properly if you take them while you are using tetracycline. You should use a different or additional means of birth control while you are using this medicine. If you have any questions about this, check with your doctor .
Bismuth subcitrate may cause your tongue to become a darker color or even black. It may also make your stools (bowel movements) black. This is only temporary and will not hurt you. Your tongue and stools will go back to normal when you stop using this medicine. Ask your doctor about this if you have any concerns .
Do not drink milk or eat dairy products with this medicine .
The tetracycline in this medicine may make your skin more sensitive to sunlight. Exposure to sunlight, even for brief periods of time, may cause a skin rash, itching, redness or other discoloration of the skin, or a severe sunburn. Use a sunscreen when you are outdoors. Avoid sunlamps and tanning beds .
Before you have any medical tests or x-rays, tell the medical doctor in charge that you are taking this medicine. The results of some tests may be affected by this medicine .
You should not drink alcoholic beverages or take other alcohol-containing preparations while you are using this medicine, and for at least one day after stopping it .
If your symptoms do not improve within a few days or if they become worse, check with your doctor .