Constipation

Some drugs can cause a constipation of the intestines.

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Itch

Some drugs can cause itching, which causes a desire to scratch one’s skin.

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Constricting of the pupils

Some drugs constrict the pupils.

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Changes in personality

Chronic use of this drug may cause permanent changes in personality or the development of new personality traits. Think of distrust, aggression, paranoia, or arrogance.

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Hallucinations

In hallucinations you perceive things that are not there. It really is an observation that seems to be real. For example, you may hear sounds (auditory hallucinations) or see something […]

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Irritable

You are easily irritated or agitated.

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Cold hands and feet

The constriction of the arteries means less blood flows to your extremities. This causes cold hands and feet in some people.

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Impaired short-term memory

Short-term memory does not work properly after taking some drugs. This makes you remember things less well. For example, it often happens that during a conversation you forget what you […]

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Increased heart rate

This drug can increase the rate at which your heart beats.

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Lowered blood pressure

Some drugs can lower the blood pressure in your body.

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Irritation of the airways

Smoking can cause coughing or a burning or tickling sensation in the throat.

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Red eyes

Dilation of the blood vessels in the eyes causes red eyes.

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Sluggishness

Some drugs make you sluggish.

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Blue limbs

The discoloration is due to the narrowing of the blood vessels.

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Craving

Feeling a (strong) need to take more when the effect wears off.

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Double vision

Not being able to focus your eyes properly.

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Increased appetite

Increased appetite, and possible weight gain. Sometimes called “munchies”.

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Decreased body temperature

Some drugs cause a decrease in body temperature.

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Increased sensitivity

Increased sensitivity to light, sound and touch, which can be very annoying at times.

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Trembling

Trembling of your limbs.

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