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Adverse reactions (see table) are ranked under heading of frequency, the most frequent first, using the following convention: very common (≥ 1/10); common (≥ 1/100, < 1/10); uncommon (≥ 1/1,000, < 1/100); rare (≥ 1/10,000, < 1/1,000); very rare (< 1/10,000), including isolated reports. (See table.)
Click on icon to see table/diagram/imageIf ergotamine-containing drugs are used excessively over years, they may induce fibrotic changes, in particular of the pleura and the retroperitoneum. There have also been rare reports of fibrotic changes of the cardiac valves (see also Precautions).
The occurrence of drug-induced headaches has been reported during prolonged and uninterrupted treatment with Cafergot (see also Precautions).
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