Promethazine 25 mg pills contain promethazine hydrochloride, a first generation antihistamine used for allergies, nausea, and sedation. These tablets, often sold as generic promethazine HCl or under the brand Phenergan, come in scored form for easy splitting. In my practice, I prescribe them often for quick symptom control.
| Drug Name | Tablet Strength | Best Price | Per Pill |
| Promethazine HCl (Generic) | 25 mg | $10.99 for 30 tabs | $0.37 |
| Phenergan (Brand) | 25 mg | $85.78 for 30 tabs | $2.86 |
| Promethazine HCl (Generic) | 12.5 mg | $12.68 for 30 tabs | $0.42 |
| Promethazine HCl (Generic) | 50 mg | $13.95 for 30 tabs | $0.47 |
Generic beats brand every time on cost. Patients save big with coupons at chains. Stock up smartly. What it does
Promethazine 25 mg tablets block histamine H1 receptors to ease allergy signs like runny nose and itchy eyes. This phenothiazine derivative also calms the brain's vomit center, stopping nausea from motion or surgery. I see it work fast for patients who can't keep food down. Take one before travel to dodge car sickness. It quiets itching from hives too. Phenergan handles pre op jitters by sedating mildly. Dry mouth happens sometimes from anticholinergic effects. Drowsiness hits most users, so no driving after. Pair with pain meds post op for better rest. N,N dimethyl-1-(10H phenothiazin-10-yl)propan-2-amine is the active form. It crosses into the brain easily. Kids over 2 get lower doses only. Allergic rhinitis responds well to 25 mg at night. Vomiting after chemo eases too. Always check for glaucoma first. Motion sickness vanishes with promethazine HCl. Sedation aids sleep before procedures. Generic matches brand efficacy. Strengths available
Promethazine comes as 12.5 mg, 25 mg, and 50 mg oral tablets. Lower 12.5 mg suits mild allergies or kids. I start patients on that to test tolerance. 25 mg hits the sweet spot for nausea control. 50 mg packs more sedation for tough cases. Rectal suppositories match these strengths too. Liquid form offers 6.25 mg per 5 mL for precise dosing. Injections run 25 mg/mL for hospitals. Tablets score for halving if needed. Phenergan brand sticks to 12.5, 25, and 50 mg tabs. Generics from Amneal or others cost less. Pick based on need. Higher 50 mg risks more side effects like confusion. Stick to 25 mg daily max for most. Swallow whole with water. Syrup tastes better for kids. Tablets work fine for adults. All block dopamine too for anti nausea punch. Dosage Comparison
| Dose | Duration | Best For | Price Range |
| 12.5 mg | Every 4-6 hrs | Mild allergies, kids | $0.42/pill |
| 25 mg | Every 4-6 hrs or bedtime | Nausea, motion sickness | $0.37/pill |
| 50 mg | Once daily | Sedation, severe vomiting | $0.47/pill |
| 25 mg twice daily | Before/after travel | Motion sickness prevention | $0.74/day |
| 12.5-25 mg | 3x daily max | Pre op anxiety | $1.11-$2.22/day |
Adults take 25 mg every 4-6 hours as needed for nausea. Never exceed 100 mg daily. Kids weigh 0.5 mg per pound per dose. Start low for elderly. Space doses to avoid buildup. Motion needs dose 30-60 min before trip. Post op, 25-50 mg with narcotics. Allergic reactions cap at 25 mg per dose. Hydrate well. Where to buy, pricing, shipping
Grab promethazine 25 mg at CVS, Walgreens, or Walmart with a script. GoodRx drops 30 tabs to $10.99 from $85 retail. SingleCare hits $7.99 often. Online, HealthWarehouse ships legit generics fast. Mountainside Medical offers 100-count bottles at $7.95 per 25 mg equivalent deals. Need valid Rx always. Free shipping over $50 at most sites. Two day delivery standard. Compare coupons first. Legit pharmacies license in your state. Avoid no Rx sites-they risk fakes. Chains honor transfers easy. Bulk 100 tabs run $30-40 with discounts. Per pill stays under $0.50. Stock 90-day supply. Phenergan brand costs more but generics match. Call 1-800 for support. USPS or UPS ships discreet. FAQ
What's the standard dose for adults?
25 mg every 4-6 hours works for most. Take with food if stomach sensitive. Max 100 mg per day.
Generic vs brand-which to pick?
Generic promethazine HCl equals Phenergan strength and effect. Save 70% on generic. Both FDA approved.
How fast does 25 mg kick in?
Effects start in 20 minutes. Peak at 2 hours. Lasts 4-6 hours typically.
Can kids take promethazine 25 mg?
Over 2 years, yes at 12.5-25 mg. Weigh based dosing. No under 2-breathing risks.
Does it cause drowsiness?
Yes, strong sedative effect. Avoid machines. Non drowsy options exist for day use.
Safe with alcohol?
No-amps up sedation and dizziness. Wait 12 hours post dose. Seizure risk rises.
Delivery time from online pharmacies?
2-5 days standard. Free over certain amounts. Trackable always.
