Contraindications of Metoprolol | Metoprolol

Contraindications of Metoprolol

Since the beta-receptors are not only located at the heart and vessels, but also at the eyes, lungs or fat cells, side effects can of course occur at these structures as well when taking beta-receptor blockers. Especially at the beginning of the medication intake, fatigue, sleep disorders, increased sweating or even headaches can occasionally occur. Temporary nausea and vomiting or even diarrhoea can occur.

It is also possible that allergic skin reactions may occur when taking metoprolol, which manifest themselves with redness and itching, but possibly also with sensitivity to light. When activated, the beta-receptors in the lungs normally cause the bronchi to dilate, allowing more air to enter the lungs. By blocking these receptors, the bronchial tubes no longer dilate, but may become narrower, increasing breathing resistance.

The use of metoprolol should therefore be observed with particular caution, especially in patients who are prone to asthmatic problems. In patients with a peripheral circulatory disorder, the symptoms may possibly worsen with the administration of metohexal. In rare cases, treatment with metoprolol or other beta-receptor blockers can lead to an increased drop in blood pressure, lowered heart rate, cardiac conduction disorders or even unconsciousness.

Dry mouth or reduced lacrimation is a rare side effect of taking beta-blockers. In diabetics, taking beta-blockers may lead to hypoglycaemia, which the patient may not perceive to the normal extent. This is due to the fact that the warning signs of hypoglycaemia, such as increased heart rate or tremors, may be absent. Men must be informed about the possible occurrence of libido and potency disorders. The administration of metoprolol can also lead to changes in fat metabolism with a change in the ratios of the various blood-fat forms.

Overdosage with Metroprolol

The overall picture of a metoprolol overdose is mainly characterized by cardiovascular and nervous system symptoms. Significant reduction of heart rate and blood pressure up to cardiovascular arrest may therefore be signs of overdose. Likewise, massive breathing difficulties, vomiting or even disturbances of consciousness can occur.

As a first therapeutic measure in case of overdose, treatment with metoprolol should be stopped immediately. In case of overdose you can give atropine and glucagon to counteract the effect of the beta-blocker. The patient should be monitored in intensive care with regular control of vital parameters such as blood pressure, heart rate, oxygen saturation.