This product is a controlled substance in Mexico and requires a doctorâ€™s approval and prescription. The cost for the prescription and approval from the independant doctor is included in the purchase price of this medicine. This and other medicines similar will be screened for possible combinations by your approving doctor that may be harmful if taken together. here is no cost and a refund will be issued for the total price if your doctor does not approve your prescription. TYLEX CD Active Ingredients Tylex 30 capsules contain 30MG Codeine Phosphate and 500MG Paracetamol. What is codeine? Codeine is in a group of drugs called narcotic pain medicines. Codeine is used to treat mild to moderate pain. Codeine may also be used for purposes other than those listed in this medication guide. What is the most important information I should know about codeine? Codeine may be habit-forming and should be used only by the person it was prescribed for. Codeine should never be given to another person, especially someone who has a history of drug abuse or addiction. Keep the medication in a secure place where others cannot get to it. Do not drink alcohol while you are taking codeine. Dangerous side effects or death can occur when alcohol is combined with a narcotic pain medicine. Check your food and medicine labels to be sure these products do not contain alcohol. Never take more than your prescribed dose of codeine. Tell your doctor if the medicine seems to stop working as well in relieving your pain. Codeine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Do not stop using codeine suddenly, or you could have unpleasant withdrawal symptoms. Talk to your doctor about how to avoid withdrawal symptoms when stopping the medication. What should I discuss with my healthcare provider before taking codeine? Do not use codeine if you have ever had an allergic reaction to a narcotic medicine (examples include codeine, methadone, morphine, Oxycontin, Darvocet, Percocet, Vicodin, Lortab, and many others). You should also not take codeine if you are having an asthma attack or if you have a bowel obstruction called paralytic ileus. Codeine may be habit-forming and should be used only by the person it was prescribed for. Codeine should never be given to another person, especially someone who has a history of drug abuse or addiction. Keep the medication in a secure place where others cannot get to it. Before using codeine, tell your doctor if you are allergic to any drugs, or if you have: Â· asthma, COPD, sleep apnea, or other breathing disorders; Â· liver or kidney disease; Â· underactive thyroid; Â· curvature of the spine; Â· a history of head injury or brain tumor; Â· epilepsy or other seizure disorder; Â· low blood pressure; Â· gallbladder disease; Â· Addison’s disease or other adrenal gland disorders; Â· enlarged prostate, urination problems; Â· mental illness; or Â· a history of drug or alcohol addiction. FDA pregnancy category C. Codeine may be harmful to an unborn baby, and could cause breathing problems or addiction/withdrawal symptoms in a newborn. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Codeine can pass into breast milk and may harm a nursing baby. The use of codeine by some nursing mothers may lead to life-threatening side effects in the baby. Do not use this medication without telling your doctor if you are breast-feeding a baby. Older adults may be more sensitive to the effects of this medicine.