You should see your doctor as soon as you can if you see or feel any of the following:

• You may have bloody or black tarry stools or bowel movements;
• You may feel short of breath, wheeze or feel tightness in the chest;
• You may notice skin rash, swelling, hives or itching;
• You may have an upset stomach that does not go away;
• Your skin or eyes may become yellow;
• You may feel tired, sick or do not feel like eating;
• You may notice some changes in your urine;
• You may notice that your feet or lower legs become swollen;
• You may notice that your vision becomes blurred, or that you have other problems with your eyes;
• You may feel confused, depressed or dizzy;
• You may have problems with hearing;
• You may have pain while peeing or emptying your bladder;
• You may have other side effects that you think may have been caused by the drug.

You should contact your doctor right away if you have any of these side effects

This medicine contains strong harsh or toxic chemicals, which can cause serious side effects in your body. Some of these side effects are:

• Bone-marrow suppression. Bone marrow produces red blood cells. If this is suppressed or stopped, you would have fewer red blood cells and may feel more tired.
• Hypersensitivity reactions. You may have an allergic reaction such as hives or a rash to the medicine.
• Gastrointestinal toxicity. Due to the toxic or strong chemical in the medicine, you may have abdominal cramps, diarrhea, flatulence or gas.
• Pulmonary toxicity. You may have coughing or wheezing. The lungs could produce mucus as a result of the toxic side effect of the medicine. So you may find that you are coughing up more mucus.

If you notice that you are experiencing any of these serious side effects, see your doctor right away.

Contact your doctor immediately if you experience:

• Skin rash (patches of red skin);
• Vasculitis (inflammation or swelling of the lining of small blood vessels). You may notice that the skin becomes red, warm to touch or swollen. This could be a sign of vasculitis.
• Bleeding;
• Fever;
• Persistent or continual cough.

If you notice any of these or other unusual symptoms, see your doctor as soon as possible.

If you have any unusual or scary thoughts or if you find you are acting differently while taking this medicine, talk to your doctor immediately. Some of these behaviours may include:

• Aggression – becoming angry, arguing with others, interrupting conversations;
• Extroversion – talking to others more than usual, talking continually;
• Confusion – forgetting where you are or what you were doing;