Side effects are dry mouth and drowsiness, especially with the first few doses. Antihistamines should not be taken by people who are driving or operating dangerous equipment. Some people have allergic reactions to antihistamines.
Anticholinergic side effects of antihistamines can include dry mouth, blurred vision, constipation, and urinary retention. These effects occur due to the blockade of acetylcholine receptors, which can impact various bodily functions. Additionally, some individuals may experience confusion or drowsiness, particularly in older adults. It's important for patients to be aware of these potential side effects when using antihistamines.
Common side effects of antihistamines are drowsiness, which is why you should never drive or operate heavy machinery when taking them, dizziness, restlessness, nervousness and upset stomach. Other side effects, which aren't as common are dry mouth, dry nose, irritability, difficulty urinating and blurred vision. In most cases, the side effects from antihistamines are barely noticeable. However, the real problem with taking these drugs is not so much from what they do to you, but from what they don't do.
Nothing. these antihistamines are different structurally
It is not safe to give antihistamines to babies without consulting a doctor first. Antihistamines can have serious side effects in infants and should only be given under medical supervision.
It is important to consult with a pediatrician before giving antihistamines to babies, as they can have serious side effects. Generally, it is recommended to avoid giving antihistamines to babies under 6 months old, and to use caution and follow dosage instructions for older babies.
If the hives are caused by mom's allergy or sensitivity - the baby should not be effected, but taking antihistamines can cause a marked, temporary decrease in breast milk and infants are especially sensitive to the effects of antihistamines (including sleepiness, restlessness, irritability) discuss the benefits and/or possible side effects with your doctor before taking antihistamines while breast feeding.
Antihistamines work by blocking the action of histamine, a chemical involved in allergic reactions. Some antihistamines can also affect serotonin levels in the body by blocking the reuptake of serotonin in the brain, leading to increased levels of serotonin. This can result in side effects such as drowsiness and changes in mood.
Jean-Pierre Rihoux has written: 'The allergic reaction' -- subject(s): Antihistamines, Side effects, Allergy, Immunopathology
Clemastine is an antihistamine and anticholinergic. Clemasitine is a sedating antihistamine, but it exhibits fewer other side effects than most of the widely used antihistamines.
Sedation
Yes. First generation antihistamines (i.e. Vistaril, Benadryl) increase the analgesic effects of most opiates so that a lower dose of opiate can be given. Antihistamines also reduce some of the side effects, such as itching and nausea. Vistaril can also inhibit the enzyme that metabolizes Oxycodone, but I think that is negligible unless the Vistaril dose is very high (over 100mg).
It is generally not recommended to take two antihistamines within fourteen hours unless directed by a healthcare professional. Taking multiple antihistamines can increase the risk of side effects, such as drowsiness, dizziness, or heart palpitations. Always consult a doctor or pharmacist for personalized advice based on your specific situation and the types of antihistamines involved.