While the average period occurs every 28 days and lasts for four days, fluctuations between 21 and 32 days are considered normal. Soaking through a sanitary pad or tampon every two to three hours is considered a heavy period. Likewise, prolonged periods are those that last for more than seven days.
Codeine is an opioid medicine (sometimes called an opiate) . It is used to treat mild-to-moderate types of pain. It can be particularly useful when painkillers such as paracetamol and ibuprofen have not been effective.
How Codeine Works in the Body. Background Information| Chemical Structure| How Codeine Works in the Body| Recreational Use| How Codeine Affects History. Codeine is a weak opiate agonist that provides relief from pain by blocking the pain signals that are being sent from the brain to affected areas of the body.