Abrupt cessation of treatment after prolonged administration rarely may produce nausea, headache, and malaise. These are not indicative of addiction. DRUG INTERACTIONS. FLEXERIL may have life-threatening interactions with MAO inhibitors. (See CONTRAINDICATIONS.) FLEXERIL may enhance the effects of alcohol, barbiturates, and other CNS depressants.
In general, symptoms of botulism poisoning include the following: 1  Nausea. 2  Vomiting. 3  Fatigue. 4  Dizziness.5  Double vision. 6  Dry skin, mouth and throat. 7  Drooping eyelids. 8  Difficulty swallowing. 9  Slurred speech.ome people never fully recover. In general, symptoms of botulism poisoning include the following: 1  Nausea. 2  Vomiting. 3  Fatigue. 4  Dizziness. 5  Double vision.
Infant botulism. If infant botulism is related to food, such as honey, problems generally begin within 18 to 36 hours after the toxin enters the baby's body. Signs and symptoms include: 1  Constipation (often the first sign). 2  Floppy movements due to muscle weakness and trouble controlling the head. 3  Weak cry. 4  Irritability.ut, the start of symptoms can range from a few hours to several days, depending on the amount of toxin ingested. Signs and symptoms of foodborne botulism include: 1  Difficulty swallowing or speaking. 2  Dry mouth. 3  Facial weakness on both sides of the face. 4  Blurred or double vision. 5  Drooping eyelids. 6  Trouble breathing.