Side effects

Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Because a side effect is stated here, it does not mean that all people using this medicine will experience that or any side effect.

Headache

Abdominal pain

Difficulty in passing urine (urinary retention)

Dry mouth

Difficulty in sleeping (insomnia)

Changes in mood

Slow, shallow breathing (respiratory depression)

Confusion

Shaking, usually of the hands (tremor)

Sweating

Nightmares

Addiction to the medicine (dependence)

Skin rashes

Fits (convulsions)

Visual disturbances

Low blood pressure (hypotension)

False perceptions of things that are not really there (hallucinations)

A state of well-being, optimism and cheerfulness (euphoria)

Pins and needles (paraesthesia)

Dizziness

Lightheadedness

Fainting

High blood pressure (hypertension)

Disorientation

Increased heart rate (tachycardia)

Constipation

Drowsiness

Nausea and vomiting

The side effects listed above may not include all of the side effects reported by the drug's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.

How can this medicine affect other medicines?

Pentazocine should not be used in patients already dependent on other opioids because it can produce the symptoms of withdrawal. Opioids should not be taken with MAOI anti-depressants or for two weeks after they have been stopped. When taken together with other drugs that have a sedative effect on the central nervous system, for example, alcohol, sleeping drugs, antidepressant drugs and antihistamines, drowsiness is likely to be increased .

Other medicines containing the same active ingredients

Fortral

Pentazocine Suppositories

Pentazocine Tablets

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