Get Delsym 12hr Online
Delsym 12Hr (dextromethorphan polistirex) provides extended-release cough suppression for up to 12 hours. Connect with a licensed physician on Doctronic and get a prescription without leaving home.
What Is Delsym 12hr?
Delsym 12Hr (dextromethorphan polistirex) is a prescription-strength extended-release medication used to manage cough, including cough due to colds, upper respiratory tract irritation, and minor throat irritation. It works by acting centrally on the cough center in the medulla to suppress the cough reflex, with a polistirex ion-exchange resin delivery system that extends action to 12 hours. With the right dose and ongoing monitoring, most patients experience meaningful reduction in cough frequency and improved comfort throughout the day and night.
- Provides up to 12 hours of extended-release cough suppression in a single dose
- Get personalized guidance from doctor-trained AI
- Explore treatment and prescription options
Is Online Delsym 12hr Treatment Right for You?
Doctronic can evaluate you for Delsym 12Hr (dextromethorphan polistirex) if you are an adult experiencing a persistent cough due to a cold, minor throat irritation, or upper respiratory tract irritation. Your physician will review your symptom history and any current medications to confirm this treatment is appropriate for you.
Because dextromethorphan acts on the central nervous system, your provider will also review your history for conditions such as chronic cough, asthma, monoamine oxidase inhibitor use, or other factors affecting your respiratory or neurological health before prescribing.
- Diagnosed with or experiencing a persistent cough
- Get personalized guidance from AI and clinicians
- Explore treatment and prescription refill options
- Access care from home, often the same day
Medications We Prescribe for Cough
Delsym 12Hr
Dextromethorphan Polistirex
Extended-release cough suppressant providing up to 12 hours of relief in a single dose.
AvailableDelsym
Dextromethorphan HBr 30mg
Immediate-release formulation of dextromethorphan for shorter-duration cough suppression.
AvailableRobitussin
Dextromethorphan
Standard dextromethorphan cough suppressant commonly used for acute cough relief.
AvailableTessalon Perles
Benzonatate
Non-narcotic cough suppressant that works peripherally to reduce the cough reflex, used as an alternative for adults.
AvailableHow Cough Treatment Works at Doctronic
Chat With The #1 AI Doctor
Doctronic answers your health questions with personalized medical insights and helps our doctors create a better treatment plan for you.
Meet With a Licensed Doctor For Treatment
Book a $39 telehealth appointment (or copay) within 30 minutes. Our doctors create personalized treatment plans with prescriptions when needed.
Pick Up Your Prescription
Our doctors prescribe non-controlled medications in all 50 states and send prescriptions to your pharmacy for same-day pickup.
What a Doctronic consultation looks like
Free to start, no account needed. Here's how a real Cough consultation unfolds.
Describe your symptoms
Type what you're feeling — no forms, no dropdowns.
Free · No account neededAI asks the right questions
Built by doctors to rule out serious conditions first.
Doctor-trained AIGet your assessment + next steps
Instant clinical assessment — then connect to a doctor if needed, no repeating yourself.
$39 doctor visit · All 50 statesPricing that won't make you sick
Chat for free, see an online doctor for $39/visit, or refill a prescription online for as low as $0
-
Available in all 50 states + DC
-
Insurance accepted
- 24/7 medical care Free
- Specialist referrals Free
- Lifelong health record Free
- Unlimited questions Free
- Prescription refills Starting as low as $0
- Video visit with real doctors $39/visit
These are stories from real users who turned to Doctronic for answers when it mattered most.
- Preparing for a doctor visit
- Finding peace of mind
- Understanding a diagnosis
- Managing chronic illness
- Navigating healthcare
- A second opinion
- Improving health
Frequently asked questions
Delsym 12Hr contains dextromethorphan polistirex, a cough suppressant in an extended-release formulation. It acts on the cough center in the brain to reduce the urge to cough, and its ion-exchange resin technology slowly releases the active ingredient over 12 hours, providing longer-lasting relief than immediate-release products.
Most people begin to notice a reduction in cough frequency within 15 to 30 minutes of taking a dose. Because it is an extended-release formulation, the full 12-hour effect builds gradually, maintaining suppression through the dosing period.
Delsym 12Hr uses a polistirex extended-release resin system, which releases dextromethorphan gradually over 12 hours. Standard dextromethorphan formulations are immediate-release and typically require dosing every 4 to 6 hours to maintain cough control.
Delsym 12Hr is not appropriate for people currently taking monoamine oxidase inhibitors (MAOIs) or those who have taken an MAOI within the past 14 days, as this combination can cause serious reactions. It should not be used for chronic cough associated with asthma, smoking, or emphysema without physician guidance, and is not approved for children under 12.
Some combination cold products already contain dextromethorphan, so taking them together could result in double-dosing. Your Doctronic physician will review your current medications before prescribing to avoid interactions and duplications.
Common side effects include drowsiness, dizziness, and mild stomach upset. Most side effects are mild and temporary. If you experience confusion, difficulty breathing, or signs of an allergic reaction, seek medical attention promptly.
Doctronic uses AI-powered evaluation to gather information about your symptoms and health history. A licensed physician then reviews your case, and if appropriate, creates a personalized treatment plan that may include a prescription sent to your preferred pharmacy.
Yes. Doctronic connects you with licensed physicians who are doctor-reviewed and audited, and the platform is fully HIPAA-compliant. Consultations are available to adults 18 and older in any U.S. state.
Top Conditions We Can Help With
People turn to Doctronic and our licensed medical team for support with all types of conditions.