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Zocor Side Effects

Zocor is a statin and is used to help treat and prevent cardiovascular disease by monitoring levels of harmful cholesterol in the blood. These have been used for decades as a cholesterol treatment and are not likely to cause side effects. However, just like any prescription treatment it might not be completely suitable for everybody to use.

Below is an outline of all the side effects that have been reported by users of the treatment, some of them are serious, while the majority of them are mild and may just be an indication that your body is adjusting to the treatment. Nevertheless, it's always advisable to seek medical help if you are finding any side effects particularly worrying.


Headaches, dizziness and trouble sleeping are all side effects that are associated with the use of Zocor. If they do occur, they are usually not serious and do not last for very long.


Abdominal pain, indigestion and nausea may occur after taking this medication, potentially accompanied by nausea and vomiting. Diarrhoea is also a possibility. Most people will not be affected by these side effects.


Skin reactions as a result of this medication are rare but may occur. These could include a rash or itching.


Some muscle weakness may occur after taking this medication, though this is rare.

Zocor side effects

Click on the relevant area of the body to find out about how it may be affected by Zocor

Rare side effects

Most of the Zocor side effects are rare, which means that they occur in less than one person in every 1000 people. Some of these side effects can be extremely serious in nature and if you experience any of these you should seek medical help. These effects may include muscle weakness, an allergic reaction (swelling of the face, shortness of breath, tongue with a rash), inflammation of the blood vessels or inflammation of the liver.

Side effects Rare Very rare Frequency unknown
Numbness or weakness of the arms and legs
Headache, tingling sensation and/or dizziness
Digestive disturbances - abdominal pain, constipation, flatulence, indigestion, 
diarrhoea, nausea and/or vomiting
Rash, itching and/or hair loss
Numbness or weakness of the arms and legs
Trouble sleeping
Poor memory
Erectile dysfunction
Inflammation of the lungs leading to breathing problems including persistent cough and/or shortness of breath or fever
Tendon problems, rupture of the tendon

Very rare side effects

These side effects have been reported by less than one out of every 10,000 people and they may include poor memory and trouble sleeping. If you experience these side effects, you should mention this to your doctor, as you may need to take an alternative statin or adjust your dose. Seek medical help if any effects you are experiencing are worrying you.

Side effects where the frequency is not known

Side effects categorised under this heading occur so rarely that their exact frequency isn't known. Speak to your doctor if you experience these effects, especially the more serious ones such as tendon problems, depression or difficulty breathing. If you're currently having erection difficulties, it may be worth mentioning this to your doctor as an adjustment of dose could deal with the problem effectively.

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