HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

Prev rhr 120-154, 1 wk metoprolol tartrate 12.5mg twice daily for tachycardia, rhr now 112. how long b4 body adjusts, how soon b4 dose incr, if any?

A doctor has provided 1 answer

Time will tell: Depends, every person is different on how they take to medications. You should be ruled out for inappropriate sinus tachycardia (a diagnosis of exclusion). If everything else is ruled-out and inapp. sinus tach is what you have, be patient this is a relatively benign condition but very difficult to treat. Good luck.

Answered 7/6/2014

3.9k views

Thank

Related Questions

A member asked:

What causes sinus tachycardia and is there any real fix or cure for it besides beta blockers? I take Metoprolol twice daily but they don't help much.

A doctor has provided 1 answer

A member asked:

Does propranolol or toprol (metoprolol) XR shorten life in patients with tachycardia? I'm 18 and on toprol (metoprolol). Doc wants me on propranolol now

A doctor has provided 1 answer

A member asked:

I'm on toprol (metoprolol) XR and Synthroid daily. Can i eat watermelon? And would watermelon help to control my tachycardia ?

A doctor has provided 1 answer

A member asked:

I have sinus tachycardia. Im on toprol (metoprolol). Pulse used to be 150-200. Now its 52-60. Im always dizzy but 3 of my docs say stay on toprol (metoprolol). What 2 do? Im 18

A doctor has provided 1 answer

A member asked:

My homocysteine level was 13.5. I have high blood pressure & sinus tachycardia, on toprol (metoprolol) 50 mg XL daily! is that level of 13.5 dangerous. I'm 18!

5 doctors weighed in across 2 answers

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Tachycardia better after a wk of low dose metoprolol, but rhr still a lil high. How long b4 body adjusts, how soon b4 knowing if dose should be incr?
I usually take lopressor (metoprolol tartrate) 50 mg, twice daily for sinus tachycardia (hr rest >90-150). It works well, but made me feel exhausted. What should I do?
Recently diagnosed with low iron serum level of 27. Could this cause tachycardia? Recently my resting heart rate is 98-105 bpm and Im currently taking 25 mg of metoprolol er daily?
Can you take Ashwagandha when you are diagnosed with supraventricular tachycardia and are on metoprolol tartrate??
Is there a difference in doseage i was taking 50mg metoprolol ER bid. Now i can no longer get extended release only tartrate shoulibi continue same do?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.