
While Benadryl can be effective in making people sleepy, it is not recommended as a long-term solution for insomnia or other sleep issues. Benadryl's active ingredient, diphenhydramine, is an antihistamine that blocks the molecule histamine, which is involved in keeping people awake during the day. However, side effects can include dry mouth, dizziness, and constipation, and it may not be suitable for children, older adults, or those with certain medical conditions. Alternatives to Benadryl for sleep include melatonin supplements and prescription sleep medicines, but these also come with their own risks and considerations.
How to sleep without Benadryl
| Characteristics | Values |
|---|---|
| Side effects | Drowsiness, dry mouth, dizziness, constipation, altered mental state, urinary retention, slowed reaction time, hyperactivity |
| Risks | Dependence, tolerance, sleepwalking, other parasomnias |
| Alternatives | Melatonin, Belsomra (suvorexant), prescription sleep medicines |
| Precautions | Consult a doctor or pharmacist before use, especially for children and older adults |
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What You'll Learn

Natural supplements like melatonin may help
If you want to try melatonin for sleep, it is important to understand how it works. Melatonin levels rise about two hours before bedtime, so it is recommended to take a supplement two hours before you want to go to sleep. You can also adjust your sleep-wake schedule by exposing yourself to daylight during the morning and afternoon and keeping the lights low in the evening to help your mind and body prepare for sleep. It is also important to limit screen time, as the blue and green light from smartphones, tablets, and computers can neutralize melatonin's effects.
The dosage of melatonin supplements varies depending on age and weight. Adults should not take more than 10 mg at a time, and small doses can be effective. It is recommended to start with a lower dose and adjust as needed. Melatonin supplements are generally safe for short-term use, but they should not be used for more than one to two months without consulting a healthcare provider.
Melatonin supplements can be helpful for children with sleep issues, including neurodiverse children with ADHD or autism and teens with delayed sleep phase syndrome. It is important to work with a healthcare provider to determine the appropriate dosage and duration of use for children.
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Prescription sleep medicines can cause dependence
While prescription sleep medicines can help you get some sleep, they can also cause dependence. Sleeping pills can have several side effects, including constipation, diarrhoea, muscle weakness, digestive problems, and worsened snoring and sleep apnea. They can also negatively impact your ability to drive and increase the risk of falling, especially in older people.
When you take prescription sleep medicines night after night, your body may start to depend on them. This can lead to rebound insomnia, which means that when you stop taking the medication, your insomnia may come back worse than before. It can be physically and mentally challenging to stop taking prescription sleep medicines once you have become dependent on them. The German Centre for Addiction Issues (DHS) estimates that 1.5 to 1.9 million people in Germany are dependent on benzodiazepines, with women, especially older women, being more likely to use these medications.
The risk of dependence is why it's important to keep the dose and duration of use as low and short as possible. Dependency can develop quickly, sometimes within just a few weeks, so it's crucial to be cautious when taking these medications. If you have been using sleep aids for a long time, it's essential to talk to your healthcare provider about how to stop safely. It may take months to stop taking the pills, and you should gradually reduce the dose with the guidance of a doctor.
There are alternative ways to improve your sleep without turning to prescription medications. Melatonin is a natural hormone that promotes sleep by influencing when you fall asleep and wake up. Valerian has a calming effect on your nervous system and helps promote a better night's sleep. Cognitive behavioural therapy (CBT) is a form of psychological support that can help address insomnia resulting from medical issues such as obstructive sleep apnea, depression, or circadian rhythm disorders.
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Benadryl may not be suitable for children
While Benadryl can be effective in providing allergy relief for children, it may not be suitable for them as a sleep aid. Benadryl is an antihistamine medication that can cause drowsiness as a side effect. Although this may be beneficial for adults looking to aid their sleep, it is generally not recommended for children.
Firstly, Benadryl can have the opposite effect on some children, causing hyperactivity and irritability. This reaction is due to the stimulation of their nervous system, which can lead to increased energy levels and excitability instead of drowsiness. Therefore, it is challenging to predict how Benadryl will affect individual children, and the potential for hyperactivity poses a risk, especially during activities requiring focus or calmness, such as school or bedtime.
Secondly, Benadryl can alter a child's mental state and lead to side effects such as sleepwalking and other parasomnias. While these side effects may be mild and well-tolerated in young patients without other medical problems, they can still disrupt sleep quality and cause confusion or disorientation. The risk of altered mental states and subsequent behaviours may outweigh the benefits of using Benadryl as a sleep aid, especially when safer alternatives are available.
Additionally, Benadryl is not recommended for children under the age of 2. Manufacturer labels on Children's Benadryl products specifically instruct parents not to administer the medication to children under 2 years old. For toddlers between the ages of 2 and 5, it is advised to consult a doctor before giving Benadryl. In general, Children's Benadryl products are recommended for children ages 6 and older, and even then, it is important to follow the correct dosage as directed by a pediatrician or the product label.
Lastly, it is important to consider the potential for misuse or overdose. Benadryl should not be used to force children to sleep, and proper dosage instructions must be followed. Overdose can occur if more than the recommended number of doses are administered within a 24-hour period. Therefore, parents and caregivers should exercise caution and consult a healthcare professional before giving Benadryl to children, especially for sleep aid purposes.
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Benadryl can cause side effects like dry mouth and dizziness
While Benadryl can be effective for treating allergies, it can also cause several side effects, including dry mouth and dizziness. Dry mouth, also known as xerostomia, is a common side effect of antihistamines like Benadryl. It occurs due to the anticholinergic properties of the drug, which block the effects of acetylcholine in the body, resulting in reduced saliva production. This side effect may not be life-threatening, but chronic dry mouth can increase the risk of dental issues and worsen gastroesophageal reflux disease (GERD) symptoms.
To manage dry mouth caused by Benadryl, there are a few simple remedies you can try. Sucking on sugarless hard candy, ice chips, or chewing sugarless gum can stimulate saliva production and provide temporary relief. Drinking water or using a saliva substitute can also help moisten the mouth. However, it's important to remember that these are only temporary solutions, and the underlying cause of dry mouth is the medication's side effects.
Dizziness is another common side effect associated with Benadryl. It can be particularly concerning as it increases the risk of falls, especially in older adults. If you experience dizziness while taking Benadryl, it's important to find a safe place to sit or lie down, preventing any potential falls caused by losing your balance. In most cases, the dizziness will subside on its own. However, if it persists or becomes a regular occurrence, it's best to discontinue Benadryl and consult your pharmacist or healthcare provider for alternative options.
It's worth noting that Benadryl can also cause other side effects, including drowsiness, blurry vision, constipation, stomach upset, and memory problems. While these side effects are typically mild and well-tolerated in young, healthy individuals, they can pose a risk to certain populations, especially the elderly. Additionally, alcohol and marijuana can enhance the dizziness and drowsiness caused by Benadryl, so it's important to avoid them while taking this medication.
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Consult a doctor for long-term sleep issues
While Benadryl can be effective in making people sleepy, it is not recommended for long-term use. If you are experiencing long-term sleep issues, it is best to consult a doctor or a sleep specialist.
Benadryl is not a go-to medication for chronic insomnia. It is typically recommended for short-term sleep problems. The active ingredient in Benadryl, diphenhydramine, is an antihistamine that blocks the molecule histamine in the body. Histamine not only causes the unpleasant swelling, itchiness, and runny nose associated with an allergic reaction, but it also plays a role in keeping people awake during the day. By blocking histamine, Benadryl induces sleepiness. However, this drowsiness can continue into the next day, causing daytime sleepiness and slowed reaction times.
Benadryl can also cause other side effects such as dizziness, dry mouth, and difficulty concentrating. In some cases, it can even lead to parasomnias like sleepwalking, especially in older adults. There is a risk of becoming dependent on Benadryl if it is taken continuously for an extended period. It is generally advised to consult a doctor if you need to take Benadryl for more than two weeks.
If you are experiencing long-term sleep issues, it is important to seek professional help. A doctor or sleep specialist can help identify any underlying medical issues that may be causing your insomnia. These could include conditions such as obstructive sleep apnea, depression, or circadian rhythm disorders. They can also provide guidance on safe and effective sleep aids, including prescription medications or natural supplements, if necessary.
Additionally, they can advise you on developing healthy sleep habits, which may include establishing a consistent sleep schedule, improving sleep hygiene, and implementing relaxation techniques. Consulting a doctor for long-term sleep issues is a comprehensive approach that addresses the root causes of your insomnia and ensures you receive appropriate treatment.
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Frequently asked questions
Side effects of taking Benadryl include sleepiness, dizziness, dry mouth, and constipation. In some cases, it can also cause hyperactivity, especially in children.
There are several over-the-counter (OTC) sleep aids that can be used as alternatives to Benadryl. Melatonin is a natural supplement option, but there is little evidence that it helps with chronic insomnia. Other alternatives include Belsomra (suvorexant) and ZzzQuil.
It is recommended to consult a healthcare professional before trying Benadryl for sleep, especially if you are taking other medications, as Benadryl may interact with them. Benadryl is not suitable for children under 12, adults over 65, and people with certain medical conditions such as narrow-angle glaucoma.
If you are having trouble sleeping, it is recommended to practice healthy sleep habits. This includes maintaining a consistent sleep schedule, creating a relaxing bedtime routine, and avoiding stimulating activities before bed. If these strategies don't work, you may want to consider seeking advice from a sleep specialist.











































