Does diphenhydramine HCL 25 mg make you drowsy?

Diphenhydramine is known as a drowsy, or sedating, antihistamine as it makes you sleepy. Non-drowsy antihistamines are less likely to have this effect. These include cetirizine, fexofenadine and loratadine.

What are the side effects of diphenhydramine hydrochloride?

Diphenhydramine may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:

  • dry mouth, nose, and throat.
  • drowsiness.
  • dizziness.
  • nausea.
  • vomiting.
  • loss of appetite.
  • constipation.
  • increased chest congestion.

Is diphenhydramine a sedative?

Diphenhydramine also blocks the action of acetylcholine (anticholinergic effect) and is used as a sedative because it causes drowsiness.

Can I take two 50mg diphenhydramine?

Diphenhydramine HCl comes in 25 mg and 50 mg strengths (Benadryl is a common brand). For adults and teens, the diphenhydramine dosage is 25 to 50 mg every 4 to 6 hours. The maximum amount you should take in one day is 300 mg. Keep in mind, taking higher doses can increase the risk of side effects, including drowsiness.

Is it OK to take diphenhydramine every night?

In general, experts don’t recommend using these drugs for anything more than an occasional sleepless night. “The antihistamine diphenhydramine [found in Benadryl] is only approved for management of short-term or temporary sleep difficulties, particularly in those people who have problems falling asleep,” Dr.

How much of diphenhydramine is lethal?

Toxic dose. The estimated fatal oral dose of diphenhydramine is 20–40 mg/kg. In general, toxicity occurs after ingestion of 3–5 times the usual daily dose. Children are more sensitive to the toxic effects of antihistamines than are adults.

What is the strongest sleep aid over the counter?

Best Over-the-Counter-Sleep-Aids

  • Editor’s Pick (Diphenhydramine HCl) – Vicks ZzzQuil Nighttime Sleep Aid.
  • Best Value (Diphenhydramine HCl) – ValuMeds Nighttime Sleep Aid.
  • Editor’s Pick (Doxylamine Succinate) – Kirkland Signature Sleep Aid.
  • Best Value (Doxylamine Succinate) – Basic Care Sleep Aid.