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

On 75 mcg synthroid for 8 months and tsh is .7, ft4 1.46, ft3 3.3 but still wake at 2am. lower t4 dosage, wait it out or investigate cortisol issues?

A doctor has provided 1 answer

NO: Your labs suggest you are on the right dose of synthroid. When you take it ( should be in the AM) can affect sleep. If you are taking it correctly, I would recommend exploring other causes of your wakefulness

Answered 11/22/2016

878 views

Thank

Related Questions

A member asked:

I have hypothyroidism and im on Synthroid (thyroxine) 137 mcg 1/2 tab daily. My last blood test showed... TSH: 0.89, Free T4: 1.9. Is this to high?

A doctor has provided 1 answer

A member asked:

Have Hashimotos thyroid for 16 years. Thyroid blood work just came back TSH 2.82 which is normal for me on 100 mcgs synthroid but free T4 was slightly elevated at 1.48 with range being .8-1.40. What could this mean?

2 doctors weighed in across 2 answers

A member asked:

HIGH TSH (6.0) , NORMAL free T4 and free T3. Free t4 is 1.5 (range up to 1.77). Hypothyroid symptoms , excessive weight gain. Safe to take synthroid 50 mcg even with higher than normal free t4?

A doctor has provided 1 answer

A member asked:

Is it concerning for someone with hashimotos taking synthroid of 0.5 to have a normal TSH-3.0 and slightly elevated free T4-1.8?

A doctor has provided 1 answer

A member asked:

Tsh w\reflex to free t4 is .22. Free t4 is 1.65 is this normal. I take 75 synthroid?

A doctor has provided 1 answer

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:

My T4 free was 1.0. TSH w/reflex to FT4 was 7.97. I have been on various doses of Synthroid (thyroxine) for years. Now is 112mg. Should it be higher dose?
Finally on dose of synthroid to keep TSH down (currently around 4tsh) and free T4 normal. Antibodies tpo came back at 1. What are other likely causes?
Had chemical pregnancy of 4 wks & TSH levels nw are 0.25 & free T4 1.8.My doc dnt want 2 reduce Synthroid (thyroxine) dose (75mcg) n want 2 check in 4 wks.Normal?
On 25mcg synthroid, (thyroxine)TSH reduced frm 4.67 to 4.57; Free T4 1.2; T3 103.Doc increased dose to 50mcg.I am trying to conceive.Is it ok?
50 yo male Hypothyroid and mild apnea and can't stay asleep, why? Wake up after 3 hrs. Been on Synthroid and TSH is now .3, free T4 is 1.5. On CPAP also. No prob falling asleep so not a hygiene issue. Tried every sleep med, Melatonin and herb.

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.