If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Examples of medicines that could cause problems if taken with antihistamines include some types of: It's best to avoid alcohol while taking an antihistamine, particularly if you're taking an older type of antihistamine, as this can increase the chances of it making you feel sleepy.Non-drowsy antihistamines are generally the best option, as they're less likely to make you feel sleepy.But types that make you feel sleepy may be better if your symptoms affect your sleep.Avoid injecting this medication into your hands, feet, buttocks, or areas of your body other than the thigh. Check this product visually for particles or discoloration from time to time.If this occurs, tell the healthcare professional right away. If it has turned cloudy or pink/brown in color, do not use the product. Fast/pounding heartbeat, nervousness, sweating, nausea, vomiting, trouble breathing, headache, dizziness, anxiety, shakiness, or pale skin may occur.For infants and children, make sure to hold their leg in place before and during the injection of the medication to prevent injuries from occurring.